[PATCH v6 03/11] drm/hisilicon: Add crtc driver for ADE
Xinliang Liu
xinliang.liu at linaro.org
Tue Mar 1 01:20:44 PST 2016
Hi,
On 1 March 2016 at 02:48, Archit Taneja <architt at codeaurora.org> wrote:
>
>
> On 2/26/2016 2:10 PM, Xinliang Liu wrote:
>>
>> Add crtc funcs and helper funcs for ADE.
>>
>> v6:
>> - Cleanup reg-names dt parsing.
>> v5:
>> - Use syscon to access ADE media NOC QoS registers instread of directly
>> writing registers.
>> - Use reset controller to reset ADE instead of directly writing registers.
>> v4: None.
>> v3:
>> - Make ade as the master driver.
>> - Use port to connect with encoder.
>> - A few cleanup.
>> v2:
>> - Remove abtraction layer.
>>
>> Signed-off-by: Xinliang Liu <xinliang.liu at linaro.org>
>> ---
>> drivers/gpu/drm/hisilicon/kirin/Makefile | 3 +-
>> drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h | 290 +++++++++++++++
>> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 452
>> ++++++++++++++++++++++++
>> drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 15 +
>> drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h | 8 +
>> 5 files changed, 767 insertions(+), 1 deletion(-)
>> create mode 100644 drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h
>> create mode 100644 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
>>
>> diff --git a/drivers/gpu/drm/hisilicon/kirin/Makefile
>> b/drivers/gpu/drm/hisilicon/kirin/Makefile
>> index cb346de47d48..2a61ab006ddb 100644
>> --- a/drivers/gpu/drm/hisilicon/kirin/Makefile
>> +++ b/drivers/gpu/drm/hisilicon/kirin/Makefile
>> @@ -1,3 +1,4 @@
>> -kirin-drm-y := kirin_drm_drv.o
>> +kirin-drm-y := kirin_drm_drv.o \
>> + kirin_drm_ade.o
>>
>> obj-$(CONFIG_DRM_HISI_KIRIN) += kirin-drm.o
>> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h
>> b/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h
>> new file mode 100644
>> index 000000000000..eb444b899c7b
>> --- /dev/null
>> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h
>> @@ -0,0 +1,290 @@
>> +/*
>> + * Copyright (c) 2016 Linaro Limited.
>> + * Copyright (c) 2014-2016 Hisilicon Limited.
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + *
>> + */
>> +
>> +#ifndef __KIRIN_ADE_REG_H__
>> +#define __KIRIN_ADE_REG_H__
>> +
>> +/*
>> + * ADE Registers
>> + */
>> +#define MASK(x) (BIT(x) - 1)
>> +
>> +#define ADE_CTRL 0x0004
>> +#define FRM_END_START_OFST 0
>> +#define FRM_END_START_MASK MASK(2)
>> +#define ADE_CTRL1 0x008C
>> +#define AUTO_CLK_GATE_EN_OFST 0
>> +#define AUTO_CLK_GATE_EN BIT(0)
>> +#define ADE_ROT_SRC_CFG 0x0010
>> +#define ADE_DISP_SRC_CFG 0x0018
>> +#define ADE_WDMA2_SRC_CFG 0x001C
>> +#define ADE_SEC_OVLY_SRC_CFG 0x0020
>> +#define ADE_WDMA3_SRC_CFG 0x0024
>> +#define ADE_OVLY1_TRANS_CFG 0x002C
>> +#define ADE_EN 0x0100
>> +#define ADE_DISABLE 0
>> +#define ADE_ENABLE 1
>> +#define INTR_MASK_CPU(x) (0x0C10 + (x) * 0x4)
>> +#define ADE_FRM_DISGARD_CTRL 0x00A4
>> +/* reset and reload regs */
>> +#define ADE_SOFT_RST_SEL(x) (0x0078 + (x) * 0x4)
>> +#define ADE_RELOAD_DIS(x) (0x00AC + (x) * 0x4)
>> +#define RDMA_OFST 0
>> +#define CLIP_OFST 15
>> +#define SCL_OFST 21
>> +#define CTRAN_OFST 24
>> +#define OVLY_OFST 37 /* 32+5 */
>> +/* channel regs */
>> +#define RD_CH_PE(x) (0x1000 + (x) * 0x80)
>> +#define RD_CH_CTRL(x) (0x1004 + (x) * 0x80)
>> +#define RD_CH_ADDR(x) (0x1008 + (x) * 0x80)
>> +#define RD_CH_SIZE(x) (0x100C + (x) * 0x80)
>> +#define RD_CH_STRIDE(x) (0x1010 + (x) * 0x80)
>> +#define RD_CH_SPACE(x) (0x1014 + (x) * 0x80)
>> +#define RD_CH_PARTIAL_SIZE(x) (0x1018 + (x) * 0x80)
>> +#define RD_CH_PARTIAL_SPACE(x) (0x101C + (x) * 0x80)
>> +#define RD_CH_EN(x) (0x1020 + (x) * 0x80)
>> +#define RD_CH_STATUS(x) (0x1024 + (x) * 0x80)
>> +#define RD_CH_DISP_CTRL 0x1404
>> +#define RD_CH_DISP_ADDR 0x1408
>> +#define RD_CH_DISP_SIZE 0x140C
>> +#define RD_CH_DISP_STRIDE 0x1410
>> +#define RD_CH_DISP_SPACE 0x1414
>> +#define RD_CH_DISP_EN 0x142C
>> +/* clip regs */
>> +#define ADE_CLIP_DISABLE(x) (0x6800 + (x) * 0x100)
>> +#define ADE_CLIP_SIZE0(x) (0x6804 + (x) * 0x100)
>> +#define ADE_CLIP_SIZE1(x) (0x6808 + (x) * 0x100)
>> +#define ADE_CLIP_SIZE2(x) (0x680C + (x) * 0x100)
>> +#define ADE_CLIP_CFG_OK(x) (0x6810 + (x) * 0x100)
>> +/* scale regs */
>> +#define ADE_SCL1_MUX_CFG 0x000C
>> +#define ADE_SCL2_SRC_CFG 0x0014
>> +#define ADE_SCL3_MUX_CFG 0x0008
>> +#define ADE_SCL_CTRL(x) (0x3000 + (x) * 0x800)
>> +#define ADE_SCL_HSP(x) (0x3004 + (x) * 0x800)
>> +#define ADE_SCL_UV_HSP(x) (0x3008 + (x) * 0x800)
>> +#define ADE_SCL_VSP(x) (0x300C + (x) * 0x800)
>> +#define ADE_SCL_UV_VSP(x) (0x3010 + (x) * 0x800)
>> +#define ADE_SCL_ORES(x) (0x3014 + (x) * 0x800)
>> +#define ADE_SCL_IRES(x) (0x3018 + (x) * 0x800)
>> +#define ADE_SCL_START(x) (0x301C + (x) * 0x800)
>> +#define ADE_SCL_ERR(x) (0x3020 + (x) * 0x800)
>> +#define ADE_SCL_PIX_OFST(x) (0x3024 + (x) * 0x800)
>> +#define ADE_SCL_UV_PIX_OFST(x) (0x3028 + (x) * 0x800)
>> +#define ADE_SCL_COEF_CLR(x) (0x3030 + (x) * 0x800)
>> +#define ADE_SCL_HCOEF(x, m, n) (0x3100 + (x) * 0x800 + \
>> + 12 * (m) + 4 * (n))
>> +#define ADE_SCL_VCOEF(x, i, j) (0x340C + (x) * 0x800 + \
>> + 12 * (i) + 4 * (j))
>> +/* ctran regs */
>> +#define ADE_CTRAN5_TRANS_CFG 0x0040
>> +#define ADE_CTRAN_DIS(x) (0x5004 + (x) * 0x100)
>> +#define CTRAN_BYPASS_ON 1
>> +#define CTRAN_BYPASS_OFF 0
>> +#define ADE_CTRAN_MODE_CHOOSE(x) (0x5008 + (x) * 0x100)
>> +#define ADE_CTRAN_STAT(x) (0x500C + (x) * 0x100)
>> +#define ADE_CTRAN_CHDC0(x) (0x5010 + (x) * 0x100)
>> +#define ADE_CTRAN_CHDC1(x) (0x5014 + (x) * 0x100)
>> +#define ADE_CTRAN_CHDC2(x) (0x5018 + (x) * 0x100)
>> +#define ADE_CTRAN_CHDC3(x) (0x501C + (x) * 0x100)
>> +#define ADE_CTRAN_CHDC4(x) (0x5020 + (x) * 0x100)
>> +#define ADE_CTRAN_CHDC5(x) (0x5024 + (x) * 0x100)
>> +#define ADE_CTRAN_CSC0(x) (0x5028 + (x) * 0x100)
>> +#define ADE_CTRAN_CSC1(x) (0x502C + (x) * 0x100)
>> +#define ADE_CTRAN_CSC2(x) (0x5030 + (x) * 0x100)
>> +#define ADE_CTRAN_CSC3(x) (0x5034 + (x) * 0x100)
>> +#define ADE_CTRAN_CSC4(x) (0x5038 + (x) * 0x100)
>> +#define ADE_CTRAN_IMAGE_SIZE(x) (0x503C + (x) * 0x100)
>> +#define ADE_CTRAN_CFG_OK(x) (0x5040 + (x) * 0x100)
>> +/* overlay regs */
>> +#define ADE_OVLY_ALPHA_ST 0x2000
>> +#define ADE_OVLY_CH_XY0(x) (0x2004 + (x) * 4)
>> +#define ADE_OVLY_CH_XY1(x) (0x2024 + (x) * 4)
>> +#define ADE_OVLY_CH_CTL(x) (0x204C + (x) * 4)
>> +#define ADE_OVLY_OUTPUT_SIZE(x) (0x2070 + (x) * 8)
>> +#define OUTPUT_XSIZE_OFST 16
>> +#define ADE_OVLY_BASE_COLOR(x) (0x2074 + (x) * 8)
>> +#define ADE_OVLYX_CTL(x) (0x209C + (x) * 4)
>> +#define ADE_OVLY_CTL 0x0098
>> +#define CH_OVLY_SEL_OFST(x) ((x) * 4)
>> +#define CH_OVLY_SEL_MASK MASK(2)
>> +#define CH_OVLY_SEL_VAL(x) ((x) + 1)
>> +#define CH_ALP_MODE_OFST 0
>> +#define CH_ALP_SEL_OFST 2
>> +#define CH_UNDER_ALP_SEL_OFST 4
>> +#define CH_EN_OFST 6
>> +#define CH_ALP_GBL_OFST 15
>> +#define CH_SEL_OFST 28
>> +
>> +/*
>> + * LDI Registers
>> + */
>> +#define LDI_HRZ_CTRL0 0x7400
>> +#define HBP_OFST 20
>> +#define LDI_HRZ_CTRL1 0x7404
>> +#define LDI_VRT_CTRL0 0x7408
>> +#define VBP_OFST 20
>> +#define LDI_VRT_CTRL1 0x740C
>> +#define LDI_PLR_CTRL 0x7410
>> +#define FLAG_NVSYNC BIT(0)
>> +#define FLAG_NHSYNC BIT(1)
>> +#define FLAG_NPIXCLK BIT(2)
>> +#define FLAG_NDE BIT(3)
>> +#define LDI_DSP_SIZE 0x7414
>> +#define VSIZE_OFST 20
>> +#define LDI_INT_EN 0x741C
>> +#define FRAME_END_INT_EN_OFST 1
>> +#define LDI_CTRL 0x7420
>> +#define BPP_OFST 3
>> +#define DATA_GATE_EN BIT(2)
>> +#define LDI_EN BIT(0)
>> +#define LDI_ORG_INT 0x7424
>> +#define LDI_MSK_INT 0x7428
>> +#define LDI_INT_CLR 0x742C
>> +#define LDI_WORK_MODE 0x7430
>> +#define LDI_DE_SPACE_LOW 0x7438
>> +#define LDI_MCU_INTS 0x7450
>> +#define LDI_MCU_INTE 0x7454
>> +#define LDI_MCU_INTC 0x7458
>> +#define LDI_HDMI_DSI_GT 0x7434
>
>
> Maybe place this one after LDI_WORK_MODE to maintain
> the increasing order?
Agree, will fix in next version.
>
>> +
>> +/*
>> + * ADE media bus service regs
>> + */
>> +#define ADE0_QOSGENERATOR_MODE 0x010C
>> +#define QOSGENERATOR_MODE_MASK MASK(2)
>> +#define ADE0_QOSGENERATOR_EXTCONTROL 0x0118
>> +#define SOCKET_QOS_EN BIT(0)
>> +#define ADE1_QOSGENERATOR_MODE 0x020C
>> +#define ADE1_QOSGENERATOR_EXTCONTROL 0x0218
>> +
>> +/*
>> + * ADE regs relevant enums
>> + */
>> +enum frame_end_start {
>> + /* regs take effective in every vsync */
>
>
> s/effective/effect
will fix in next version.
>
>> + REG_EFFECTIVE_IN_VSYNC = 0,
>> + /* regs take effective in fist ade en and every frame end */
>> + REG_EFFECTIVE_IN_ADEEN_FRMEND,
>> + /* regs take effective in ade en immediately */
>> + REG_EFFECTIVE_IN_ADEEN,
>> + /* regs take effective in first vsync and every frame end */
>> + REG_EFFECTIVE_IN_VSYNC_FRMEND
>> +};
>> +
>> +enum ade_fb_format {
>> + ADE_RGB_565 = 0,
>> + ADE_BGR_565,
>> + ADE_XRGB_8888,
>> + ADE_XBGR_8888,
>> + ADE_ARGB_8888,
>> + ADE_ABGR_8888,
>> + ADE_RGBA_8888,
>> + ADE_BGRA_8888,
>> + ADE_RGB_888,
>> + ADE_BGR_888 = 9,
>> + ADE_FORMAT_NOT_SUPPORT = 800
>
>
> ADE_FORMAT_UNSUPPORTED would be better here.
Agree, will fix in next version.
>
>
>> +};
>> +
>> +enum ade_channel {
>> + ADE_CH1 = 0, /* channel 1 for primary plane */
>> + ADE_CH_NUM
>> +};
>> +
>> +enum ade_scale {
>> + ADE_SCL1 = 0,
>> + ADE_SCL2,
>> + ADE_SCL3,
>> + ADE_SCL_NUM
>> +};
>> +
>> +enum ade_ctran {
>> + ADE_CTRAN1 = 0,
>> + ADE_CTRAN2,
>> + ADE_CTRAN3,
>> + ADE_CTRAN4,
>> + ADE_CTRAN5,
>> + ADE_CTRAN6,
>> + ADE_CTRAN_NUM
>> +};
>> +
>> +enum ade_overlay {
>> + ADE_OVLY1 = 0,
>> + ADE_OVLY2,
>> + ADE_OVLY3,
>> + ADE_OVLY_NUM
>> +};
>> +
>> +enum ade_alpha_mode {
>> + ADE_ALP_GLOBAL = 0,
>> + ADE_ALP_PIXEL,
>> + ADE_ALP_PIXEL_AND_GLB
>> +};
>> +
>> +enum ade_alpha_blending_mode {
>> + ADE_ALP_MUL_COEFF_0 = 0, /* alpha */
>> + ADE_ALP_MUL_COEFF_1, /* 1-alpha */
>> + ADE_ALP_MUL_COEFF_2, /* 0 */
>> + ADE_ALP_MUL_COEFF_3 /* 1 */
>> +};
>> +
>> +/*
>> + * LDI regs relevant enums
>> + */
>> +enum dsi_pclk_en {
>> + DSI_PCLK_ON = 0,
>> + DSI_PCLK_OFF
>> +};
>> +
>> +enum ldi_output_format {
>> + LDI_OUT_RGB_565 = 0,
>> + LDI_OUT_RGB_666,
>> + LDI_OUT_RGB_888
>> +};
>> +
>> +enum ldi_work_mode {
>> + TEST_MODE = 0,
>> + NORMAL_MODE
>> +};
>> +
>> +enum ldi_input_source {
>> + DISP_SRC_NONE = 0,
>> + DISP_SRC_OVLY2,
>> + DISP_SRC_DISP,
>> + DISP_SRC_ROT,
>> + DISP_SRC_SCL2
>> +};
>> +
>> +/*
>> + * ADE media bus service relevant enums
>> + */
>> +enum qos_generator_mode {
>> + FIXED_MODE = 0,
>> + LIMITER_MODE,
>> + BYPASS_MODE,
>> + REGULATOR_MODE
>> +};
>> +
>> +/*
>> + * Register Write/Read Helper functions
>> + */
>> +static inline void ade_update_bits(void __iomem *addr, u32 bit_start,
>> + u32 mask, u32 val)
>> +{
>> + u32 tmp, orig;
>> +
>> + orig = readl(addr);
>> + tmp = orig & ~(mask << bit_start);
>> + tmp |= (val & mask) << bit_start;
>> + writel(tmp, addr);
>> +}
>> +
>> +#endif
>> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
>> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
>> new file mode 100644
>> index 000000000000..bb93616dcf3d
>> --- /dev/null
>> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
>> @@ -0,0 +1,452 @@
>> +/*
>> + * Hisilicon Hi6220 SoC ADE(Advanced Display Engine)'s crtc&plane driver
>> + *
>> + * Copyright (c) 2016 Linaro Limited.
>> + * Copyright (c) 2014-2016 Hisilicon Limited.
>> + *
>> + * Author:
>> + * Xinliang Liu <z.liuxinliang at hisilicon.com>
>> + * Xinliang Liu <xinliang.liu at linaro.org>
>> + * Xinwei Kong <kong.kongxinwei at hisilicon.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + *
>> + */
>> +
>> +#include <linux/bitops.h>
>> +#include <linux/clk.h>
>> +#include <video/display_timing.h>
>> +#include <linux/mfd/syscon.h>
>> +#include <linux/regmap.h>
>> +#include <linux/reset.h>
>> +
>> +#include <drm/drmP.h>
>> +#include <drm/drm_crtc.h>
>> +#include <drm/drm_crtc_helper.h>
>> +#include <drm/drm_atomic.h>
>> +#include <drm/drm_atomic_helper.h>
>> +
>> +#include "kirin_drm_drv.h"
>> +#include "kirin_ade_reg.h"
>> +
>> +#define to_ade_crtc(crtc) \
>> + container_of(crtc, struct ade_crtc, base)
>> +
>> +struct ade_hw_ctx {
>> + void __iomem *base;
>> + struct regmap *noc_regmap;
>> + struct clk *ade_core_clk;
>> + struct clk *media_noc_clk;
>> + struct clk *ade_pix_clk;
>> + struct reset_control *reset;
>> + bool power_on;
>> + int irq;
>> +};
>> +
>> +struct ade_crtc {
>> + struct drm_crtc base;
>> + struct ade_hw_ctx *ctx;
>> + bool enable;
>> + u32 out_format;
>> +};
>> +
>> +struct ade_data {
>> + struct ade_crtc acrtc;
>> + struct ade_hw_ctx ctx;
>> +};
>> +
>> +static void ade_update_reload_bit(void __iomem *base, u32 bit_num, u32
>> val)
>> +{
>> + u32 bit_ofst, reg_num;
>> +
>> + bit_ofst = bit_num % 32;
>> + reg_num = bit_num / 32;
>> +
>> + ade_update_bits(base + ADE_RELOAD_DIS(reg_num), bit_ofst,
>> + MASK(1), !!val);
>> +}
>> +
>> +static u32 ade_read_reload_bit(void __iomem *base, u32 bit_num)
>> +{
>> + u32 tmp, bit_ofst, reg_num;
>> +
>> + bit_ofst = bit_num % 32;
>> + reg_num = bit_num / 32;
>> +
>> + tmp = readl(base + ADE_RELOAD_DIS(reg_num));
>> + return !!(BIT(bit_ofst) & tmp);
>> +}
>> +
>> +static void ade_init(struct ade_hw_ctx *ctx)
>> +{
>> + void __iomem *base = ctx->base;
>> +
>> + /* enable clk gate */
>> + ade_update_bits(base + ADE_CTRL1, AUTO_CLK_GATE_EN_OFST,
>> + AUTO_CLK_GATE_EN, ADE_ENABLE);
>> + /* clear overlay */
>> + writel(0, base + ADE_OVLY1_TRANS_CFG);
>> + writel(0, base + ADE_OVLY_CTL);
>> + writel(0, base + ADE_OVLYX_CTL(ADE_OVLY2));
>> + /* clear reset and reload regs */
>> + writel(MASK(32), base + ADE_SOFT_RST_SEL(0));
>> + writel(MASK(32), base + ADE_SOFT_RST_SEL(1));
>> + writel(MASK(32), base + ADE_RELOAD_DIS(0));
>> + writel(MASK(32), base + ADE_RELOAD_DIS(1));
>> + /* for video mode, that ade registers
>> + * became effective at frame end
>
>
> s/became/become
>
> Consider re-writing this comment
Agree, will fix in next version.
>
>
>> + */
>> + ade_update_bits(base + ADE_CTRL, FRM_END_START_OFST,
>> + FRM_END_START_MASK,
>> REG_EFFECTIVE_IN_ADEEN_FRMEND);
>> +}
>> +
>> +static void ade_ldi_set_mode(struct ade_crtc *acrtc,
>> + struct drm_display_mode *mode,
>> + struct drm_display_mode *adj_mode)
>> +{
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> + void __iomem *base = ctx->base;
>> + u32 width = mode->hdisplay;
>> + u32 height = mode->vdisplay;
>> + u32 hfp, hbp, hsw, vfp, vbp, vsw;
>> + u32 plr_flags;
>> + int ret;
>> +
>> + plr_flags = (mode->flags & DRM_MODE_FLAG_NVSYNC) ? FLAG_NVSYNC :
>> 0;
>> + plr_flags |= (mode->flags & DRM_MODE_FLAG_NHSYNC) ? FLAG_NHSYNC :
>> 0;
>> + hfp = mode->hsync_start - mode->hdisplay;
>> + hbp = mode->htotal - mode->hsync_end;
>> + hsw = mode->hsync_end - mode->hsync_start;
>> + vfp = mode->vsync_start - mode->vdisplay;
>> + vbp = mode->vtotal - mode->vsync_end;
>> + vsw = mode->vsync_end - mode->vsync_start;
>> + if (vsw > 15) {
>> + DRM_DEBUG_DRIVER("vsw exceeded 15\n");
>> + vsw = 15;
>> + }
>> +
>> + writel((hbp << HBP_OFST) | hfp, base + LDI_HRZ_CTRL0);
>> + /* the configured value is actual value - 1 */
>> + writel(hsw - 1, base + LDI_HRZ_CTRL1);
>> + writel((vbp << VBP_OFST) | vfp, base + LDI_VRT_CTRL0);
>> + /* the configured value is actual value - 1 */
>> + writel(vsw - 1, base + LDI_VRT_CTRL1);
>> + /* the configured value is actual value - 1 */
>> + writel(((height - 1) << VSIZE_OFST) | (width - 1),
>> + base + LDI_DSP_SIZE);
>> + writel(plr_flags, base + LDI_PLR_CTRL);
>> +
>> + /* Success should be guaranteed in mode_valid call back,
>> + * so failer shouldn't happen here
>
>
> s/failer/failure
>
> Also, please use the standard way of writing multiple lines of
> comments here and elsewhere in the driver.
The standard way should be:
/*
* Some comments.
*/
right?
>
>
>
>> + */
>> + ret = clk_set_rate(ctx->ade_pix_clk, mode->clock * 1000);
>> + if (ret)
>> + DRM_ERROR("failed to set pixel clk %dHz (%d)\n",
>> + mode->clock * 1000, ret);
>> + adj_mode->clock = clk_get_rate(ctx->ade_pix_clk) / 1000;
>> +
>> + /* ctran6 setting */
>> + writel(CTRAN_BYPASS_ON, base + ADE_CTRAN_DIS(ADE_CTRAN6));
>> + /* the configured value is actual value - 1 */
>> + writel(width * height - 1, base +
>> ADE_CTRAN_IMAGE_SIZE(ADE_CTRAN6));
>> + ade_update_reload_bit(base, CTRAN_OFST + ADE_CTRAN6, 0);
>> +
>> + DRM_DEBUG_DRIVER("set mode: %dx%d\n", width, height);
>> +}
>> +
>> +static int ade_power_up(struct ade_hw_ctx *ctx)
>> +{
>> + int ret;
>> +
>> + ret = clk_prepare_enable(ctx->media_noc_clk);
>> + if (ret) {
>> + DRM_ERROR("failed to enable media_noc_clk (%d)\n", ret);
>> + return ret;
>> + }
>> +
>> + ret = reset_control_deassert(ctx->reset);
>> + if (ret) {
>> + DRM_ERROR("failed to deassert reset\n");
>> + return ret;
>> + }
>> +
>> + ret = clk_prepare_enable(ctx->ade_core_clk);
>> + if (ret) {
>> + DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
>> + return ret;
>> + }
>> +
>> + ade_init(ctx);
>> + ctx->power_on = true;
>> + return 0;
>> +}
>> +
>> +static void ade_power_down(struct ade_hw_ctx *ctx)
>> +{
>> + void __iomem *base = ctx->base;
>> +
>> + writel(ADE_DISABLE, base + LDI_CTRL);
>> + /* dsi pixel off */
>> + writel(DSI_PCLK_OFF, base + LDI_HDMI_DSI_GT);
>> +
>> + clk_disable_unprepare(ctx->ade_core_clk);
>> + reset_control_assert(ctx->reset);
>> + clk_disable_unprepare(ctx->media_noc_clk);
>> + ctx->power_on = false;
>> +}
>> +
>> +static void ade_set_medianoc_qos(struct ade_crtc *acrtc)
>> +{
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> + struct regmap *map = ctx->noc_regmap;
>> +
>> + regmap_update_bits(map, ADE0_QOSGENERATOR_MODE,
>> + QOSGENERATOR_MODE_MASK, BYPASS_MODE);
>> + regmap_update_bits(map, ADE0_QOSGENERATOR_EXTCONTROL,
>> + SOCKET_QOS_EN, SOCKET_QOS_EN);
>> +
>> + regmap_update_bits(map, ADE1_QOSGENERATOR_MODE,
>> + QOSGENERATOR_MODE_MASK, BYPASS_MODE);
>> + regmap_update_bits(map, ADE1_QOSGENERATOR_EXTCONTROL,
>> + SOCKET_QOS_EN, SOCKET_QOS_EN);
>> +}
>> +
>> +static void ade_display_enable(struct ade_crtc *acrtc)
>> +{
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> + void __iomem *base = ctx->base;
>> + u32 out_fmt = acrtc->out_format;
>> +
>> + /* display source setting */
>> + writel(DISP_SRC_OVLY2, base + ADE_DISP_SRC_CFG);
>> +
>> + /* enable ade */
>> + writel(ADE_ENABLE, base + ADE_EN);
>> + /* enable ldi */
>> + writel(NORMAL_MODE, base + LDI_WORK_MODE);
>> + writel((out_fmt << BPP_OFST) | DATA_GATE_EN | LDI_EN,
>> + base + LDI_CTRL);
>> + /* dsi pixel on */
>> + writel(DSI_PCLK_ON, base + LDI_HDMI_DSI_GT);
>> +}
>> +
>> +static void ade_crtc_enable(struct drm_crtc *crtc)
>> +{
>> + struct ade_crtc *acrtc = to_ade_crtc(crtc);
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> + int ret;
>> +
>> + if (acrtc->enable)
>> + return;
>> +
>> + if (!ctx->power_on) {
>> + ret = ade_power_up(ctx);
>> + if (ret)
>> + return;
>> + }
>> +
>> + ade_set_medianoc_qos(acrtc);
>> + ade_display_enable(acrtc);
>> + acrtc->enable = true;
>> +}
>> +
>> +static void ade_crtc_disable(struct drm_crtc *crtc)
>> +{
>> + struct ade_crtc *acrtc = to_ade_crtc(crtc);
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> +
>> + if (!acrtc->enable)
>> + return;
>> +
>> + ade_power_down(ctx);
>> + acrtc->enable = false;
>> +}
>> +
>> +static int ade_crtc_atomic_check(struct drm_crtc *crtc,
>> + struct drm_crtc_state *state)
>> +{
>> + /* do nothing */
>> + return 0;
>> +}
>> +
>> +static void ade_crtc_mode_set_nofb(struct drm_crtc *crtc)
>> +{
>> + struct ade_crtc *acrtc = to_ade_crtc(crtc);
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> + struct drm_display_mode *mode = &crtc->state->mode;
>> + struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode;
>> +
>> + if (!ctx->power_on)
>> + (void)ade_power_up(ctx);
>> + ade_ldi_set_mode(acrtc, mode, adj_mode);
>> +}
>> +
>> +static void ade_crtc_atomic_begin(struct drm_crtc *crtc,
>> + struct drm_crtc_state *old_state)
>> +{
>> + struct ade_crtc *acrtc = to_ade_crtc(crtc);
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> +
>> + if (!ctx->power_on)
>> + (void)ade_power_up(ctx);
>> +}
>> +
>> +static void ade_crtc_atomic_flush(struct drm_crtc *crtc,
>> + struct drm_crtc_state *old_state)
>> +
>> +{
>> + struct ade_crtc *acrtc = to_ade_crtc(crtc);
>> + struct ade_hw_ctx *ctx = acrtc->ctx;
>> + void __iomem *base = ctx->base;
>> +
>> + /* only crtc is eanbled regs take effect */
>
>
> s/eanbled/enabled
will fix in next version.
>
>> + if (acrtc->enable) {
>> + /* flush ade regitsters */
>
> s/regitsters/registers
>
> Other than the minor comments:
>
> Reviewed-by: Archit Taneja <architt at codeaurora.org>
>
Thanks -:)
>
>> + writel(ADE_ENABLE, base + ADE_EN);
>> + }
>> +}
>> +
>> +static const struct drm_crtc_helper_funcs ade_crtc_helper_funcs = {
>> + .enable = ade_crtc_enable,
>> + .disable = ade_crtc_disable,
>> + .atomic_check = ade_crtc_atomic_check,
>> + .mode_set_nofb = ade_crtc_mode_set_nofb,
>> + .atomic_begin = ade_crtc_atomic_begin,
>> + .atomic_flush = ade_crtc_atomic_flush,
>> +};
>> +
>> +static const struct drm_crtc_funcs ade_crtc_funcs = {
>> + .destroy = drm_crtc_cleanup,
>> + .set_config = drm_atomic_helper_set_config,
>> + .page_flip = drm_atomic_helper_page_flip,
>> + .reset = drm_atomic_helper_crtc_reset,
>> + .set_property = drm_atomic_helper_crtc_set_property,
>> + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
>> + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
>> +};
>> +
>> +static int ade_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
>> + struct drm_plane *plane)
>> +{
>> + struct kirin_drm_private *priv = dev->dev_private;
>> + struct device_node *port;
>> + int ret;
>> +
>> + /* set crtc port so that
>> + * drm_of_find_possible_crtcs call works
>> + */
>> + port = of_get_child_by_name(dev->dev->of_node, "port");
>> + if (!port) {
>> + DRM_ERROR("no port node found in %s\n",
>> + dev->dev->of_node->full_name);
>> + return -EINVAL;
>> + }
>> + of_node_put(port);
>> + crtc->port = port;
>> +
>> + ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
>> + &ade_crtc_funcs, NULL);
>> + if (ret) {
>> + DRM_ERROR("failed to init crtc.\n");
>> + return ret;
>> + }
>> +
>> + drm_crtc_helper_add(crtc, &ade_crtc_helper_funcs);
>> + priv->crtc[drm_crtc_index(crtc)] = crtc;
>> +
>> + return 0;
>> +}
>> +
>> +static int ade_dts_parse(struct platform_device *pdev, struct ade_hw_ctx
>> *ctx)
>> +{
>> + struct resource *res;
>> + struct device *dev = &pdev->dev;
>> + struct device_node *np = pdev->dev.of_node;
>> +
>> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> + ctx->base = devm_ioremap_resource(dev, res);
>> + if (IS_ERR(ctx->base)) {
>> + DRM_ERROR("failed to remap ade io base\n");
>> + return PTR_ERR(ctx->base);
>> + }
>> +
>> + ctx->reset = devm_reset_control_get(dev, NULL);
>> + if (IS_ERR(ctx->reset))
>> + return PTR_ERR(ctx->reset);
>> +
>> + ctx->noc_regmap =
>> + syscon_regmap_lookup_by_phandle(np,
>> "hisilicon,noc-syscon");
>> + if (IS_ERR(ctx->noc_regmap)) {
>> + DRM_ERROR("failed to get noc regmap\n");
>> + return PTR_ERR(ctx->noc_regmap);
>> + }
>> +
>> + ctx->irq = platform_get_irq(pdev, 0);
>> + if (ctx->irq < 0) {
>> + DRM_ERROR("failed to get irq\n");
>> + return -ENODEV;
>> + }
>> +
>> + ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core");
>> + if (!ctx->ade_core_clk) {
>> + DRM_ERROR("failed to parse clk ADE_CORE\n");
>> + return -ENODEV;
>> + }
>> +
>> + ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg");
>> + if (!ctx->media_noc_clk) {
>> + DRM_ERROR("failed to parse clk CODEC_JPEG\n");
>> + return -ENODEV;
>> + }
>> +
>> + ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix");
>> + if (!ctx->ade_pix_clk) {
>> + DRM_ERROR("failed to parse clk ADE_PIX\n");
>> + return -ENODEV;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +int ade_drm_init(struct drm_device *dev)
>> +{
>> + struct platform_device *pdev = dev->platformdev;
>> + struct ade_data *ade;
>> + struct ade_hw_ctx *ctx;
>> + struct ade_crtc *acrtc;
>> + int ret;
>> +
>> + ade = devm_kzalloc(dev->dev, sizeof(*ade), GFP_KERNEL);
>> + if (!ade) {
>> + DRM_ERROR("failed to alloc ade_data\n");
>> + return -ENOMEM;
>> + }
>> + platform_set_drvdata(pdev, ade);
>> +
>> + ctx = &ade->ctx;
>> + acrtc = &ade->acrtc;
>> + acrtc->ctx = ctx;
>> + acrtc->out_format = LDI_OUT_RGB_888;
>> +
>> + ret = ade_dts_parse(pdev, ctx);
>> + if (ret)
>> + return ret;
>> +
>> + return 0;
>> +}
>> +
>> +void ade_drm_cleanup(struct drm_device *dev)
>> +{
>> + struct platform_device *pdev = dev->platformdev;
>> + struct ade_data *ade = platform_get_drvdata(pdev);
>> + struct drm_crtc *crtc = &ade->acrtc.base;
>> +
>> + drm_crtc_cleanup(crtc);
>> +}
>> +
>> +const struct kirin_dc_ops ade_dc_ops = {
>> + .init = ade_drm_init,
>> + .cleanup = ade_drm_cleanup
>> +};
>> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
>> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
>> index 789ebd1f5922..055729c1889c 100644
>> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
>> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
>> @@ -30,8 +30,12 @@ static struct kirin_dc_ops *dc_ops;
>>
>> static int kirin_drm_kms_cleanup(struct drm_device *dev)
>> {
>> + struct kirin_drm_private *priv = dev->dev_private;
>> +
>> dc_ops->cleanup(dev);
>> drm_mode_config_cleanup(dev);
>> + devm_kfree(dev->dev, priv);
>> + dev->dev_private = NULL;
>>
>> return 0;
>> }
>> @@ -55,8 +59,14 @@ static void kirin_drm_mode_config_init(struct
>> drm_device *dev)
>>
>> static int kirin_drm_kms_init(struct drm_device *dev)
>> {
>> + struct kirin_drm_private *priv;
>> int ret;
>>
>> + priv = devm_kzalloc(dev->dev, sizeof(*priv), GFP_KERNEL);
>> + if (!priv)
>> + return -ENOMEM;
>> +
>> + dev->dev_private = priv;
>> dev_set_drvdata(dev->dev, dev);
>>
>> /* dev->mode_config initialization */
>> @@ -84,6 +94,8 @@ err_dc_cleanup:
>> dc_ops->cleanup(dev);
>> err_mode_config_cleanup:
>> drm_mode_config_cleanup(dev);
>> + devm_kfree(dev->dev, priv);
>> + dev->dev_private = NULL;
>>
>> return ret;
>> }
>> @@ -221,6 +233,9 @@ static const struct component_master_ops kirin_drm_ops
>> = {
>> };
>>
>> static const struct of_device_id kirin_drm_dt_ids[] = {
>> + { .compatible = "hisilicon,hi6220-ade",
>> + .data = &ade_dc_ops,
>> + },
>> { /* end node */ },
>> };
>> MODULE_DEVICE_TABLE(of, kirin_drm_dt_ids);
>> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
>> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
>> index 75e9d82356d4..5a05ad6a81db 100644
>> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
>> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
>> @@ -11,10 +11,18 @@
>> #ifndef __KIRIN_DRM_DRV_H__
>> #define __KIRIN_DRM_DRV_H__
>>
>> +#define MAX_CRTC 2
>> +
>> /* display controller init/cleanup ops */
>> struct kirin_dc_ops {
>> int (*init)(struct drm_device *dev);
>> void (*cleanup)(struct drm_device *dev);
>> };
>>
>> +struct kirin_drm_private {
>> + struct drm_crtc *crtc[MAX_CRTC];
>> +};
>> +
>> +extern const struct kirin_dc_ops ade_dc_ops;
>> +
>> #endif /* __KIRIN_DRM_DRV_H__ */
>>
>
> --
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
> a Linux Foundation Collaborative Project
More information about the linux-arm-kernel
mailing list