[PATCH v6 2/6] wl12xx: use frequency instead of enumerations for pdata clocks
Eliad Peller
eliad at wizery.com
Thu Mar 12 05:09:10 PDT 2015
From: Luciano Coelho <luca at coelho.fi>
Instead of defining an enumeration with the FW specific values for the
different clock rates, use the actual frequency instead. Also add a
boolean to specify whether the clock is XTAL or not.
Change all board files to reflect this.
Signed-off-by: Luciano Coelho <luca at coelho.fi>
[Eliad - small fixes, update board file changes]
Signed-off-by: Eliad Peller <eliad at wizery.com>
---
arch/arm/mach-davinci/board-da850-evm.c | 3 +-
arch/arm/mach-omap2/pdata-quirks.c | 29 ++++++++--------
drivers/net/wireless/ti/wl12xx/main.c | 60 ++++++++++++++++++++++++++++++---
drivers/net/wireless/ti/wl12xx/wl12xx.h | 28 +++++++++++++++
include/linux/wl12xx.h | 27 ++-------------
5 files changed, 103 insertions(+), 44 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 916589c..853b941 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -1386,7 +1386,8 @@ static const short da850_wl12xx_pins[] __initconst = {
static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
.irq = -1,
.irq_trigger = IRQ_TYPE_EDGE_RISING,
- .board_ref_clock = WL12XX_REFCLOCK_38,
+ .ref_clock_freq = 38400000,
+ .ref_clock_xtal = false,
};
static __init int da850_wl12xx_init(void)
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 4449f4c..337cc22 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -39,14 +39,14 @@ static struct twl4030_gpio_platform_data twl_gpio_auxdata;
static struct wl12xx_platform_data wl12xx __initdata;
-static void __init __used legacy_init_wl12xx(unsigned ref_clock,
- unsigned tcxo_clock,
+static void __init __used legacy_init_wl12xx(u32 ref_clock_freq,
+ u32 tcxo_clock_freq,
int gpio)
{
int res;
- wl12xx.board_ref_clock = ref_clock;
- wl12xx.board_tcxo_clock = tcxo_clock;
+ wl12xx.ref_clock_freq = ref_clock_freq;
+ wl12xx.tcxo_clock_freq = tcxo_clock_freq;
wl12xx.irq = gpio_to_irq(gpio);
wl12xx.irq_trigger = IRQ_TYPE_LEVEL_HIGH;
@@ -57,8 +57,8 @@ static void __init __used legacy_init_wl12xx(unsigned ref_clock,
}
}
#else
-static inline void legacy_init_wl12xx(unsigned ref_clock,
- unsigned tcxo_clock,
+static inline void legacy_init_wl12xx(u32 ref_clock_freq,
+ u32 tcxo_clock_freq,
int gpio)
{
}
@@ -130,7 +130,7 @@ static void __init omap3_sbc_t3730_twl_init(void)
static void __init omap3_sbc_t3730_legacy_init(void)
{
omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
- legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 136);
+ legacy_init_wl12xx(38400000, 0, 136);
}
static void __init omap3_sbc_t3530_legacy_init(void)
@@ -174,12 +174,12 @@ static void __init omap3_igep0030_rev_g_legacy_init(void)
static void __init omap3_evm_legacy_init(void)
{
- legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149);
+ legacy_init_wl12xx(38400000, 0, 149);
}
static void __init omap3_zoom_legacy_init(void)
{
- legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162);
+ legacy_init_wl12xx(26000000, 0, 162);
}
static void am35xx_enable_emac_int(void)
@@ -246,7 +246,7 @@ static void __init omap3_sbc_t3517_legacy_init(void)
am35xx_emac_reset();
hsmmc2_internal_input_clk();
omap3_sbc_t3517_wifi_init();
- legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 145);
+ legacy_init_wl12xx(38400000, 0, 145);
}
static void __init am3517_evm_legacy_init(void)
@@ -291,18 +291,17 @@ static void __init omap3_tao3530_legacy_init(void)
#ifdef CONFIG_ARCH_OMAP4
static void __init omap4_sdp_legacy_init(void)
{
- legacy_init_wl12xx(WL12XX_REFCLOCK_26,
- WL12XX_TCXOCLOCK_26, 53);
+ legacy_init_wl12xx(26000000, 26000000, 53);
}
static void __init omap4_panda_legacy_init(void)
{
- legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53);
+ legacy_init_wl12xx(38400000, 0, 53);
}
static void __init var_som_om44_legacy_init(void)
{
- legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 41);
+ legacy_init_wl12xx(38400000, 0, 41);
}
#endif
@@ -317,7 +316,7 @@ static struct iommu_platform_data omap4_iommu_pdata = {
#ifdef CONFIG_SOC_AM33XX
static void __init am335x_evmsk_legacy_init(void)
{
- legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 31);
+ legacy_init_wl12xx(38400000, 0, 31);
}
#endif
diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 144d1f8..b3f751f 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -1770,6 +1770,40 @@ wl12xx_iface_combinations[] = {
},
};
+static const struct wl12xx_clock wl12xx_refclock_table[] = {
+ { 19200000, false, WL12XX_REFCLOCK_19 },
+ { 26000000, false, WL12XX_REFCLOCK_26 },
+ { 26000000, true, WL12XX_REFCLOCK_26_XTAL },
+ { 38400000, false, WL12XX_REFCLOCK_38 },
+ { 38400000, true, WL12XX_REFCLOCK_38_XTAL },
+ { 52000000, false, WL12XX_REFCLOCK_52 },
+ { 0, false, 0 }
+};
+
+static const struct wl12xx_clock wl12xx_tcxoclock_table[] = {
+ { 16368000, true, WL12XX_TCXOCLOCK_16_368 },
+ { 16800000, true, WL12XX_TCXOCLOCK_16_8 },
+ { 19200000, true, WL12XX_TCXOCLOCK_19_2 },
+ { 26000000, true, WL12XX_TCXOCLOCK_26 },
+ { 32736000, true, WL12XX_TCXOCLOCK_32_736 },
+ { 33600000, true, WL12XX_TCXOCLOCK_33_6 },
+ { 38400000, true, WL12XX_TCXOCLOCK_38_4 },
+ { 52000000, true, WL12XX_TCXOCLOCK_52 },
+ { 0, false, 0 }
+};
+
+static int wl12xx_get_clock_idx(const struct wl12xx_clock *table,
+ u32 freq, bool xtal)
+{
+ int i;
+
+ for (i = 0; table[i].freq != 0; i++)
+ if ((table[i].freq == freq) && (table[i].xtal == xtal))
+ return table[i].hw_idx;
+
+ return -EINVAL;
+}
+
static int wl12xx_setup(struct wl1271 *wl)
{
struct wl12xx_priv *priv = wl->priv;
@@ -1799,7 +1833,17 @@ static int wl12xx_setup(struct wl1271 *wl)
wl12xx_conf_init(wl);
if (!fref_param) {
- priv->ref_clock = pdata->board_ref_clock;
+ priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
+ pdata->ref_clock_freq,
+ pdata->ref_clock_xtal);
+ if (priv->ref_clock < 0) {
+ wl1271_error("Invalid ref_clock frequency (%d Hz, %s)",
+ pdata->ref_clock_freq,
+ pdata->ref_clock_xtal ?
+ "XTAL" : "not XTAL");
+
+ return priv->ref_clock;
+ }
} else {
if (!strcmp(fref_param, "19.2"))
priv->ref_clock = WL12XX_REFCLOCK_19;
@@ -1817,9 +1861,17 @@ static int wl12xx_setup(struct wl1271 *wl)
wl1271_error("Invalid fref parameter %s", fref_param);
}
- if (!tcxo_param) {
- priv->tcxo_clock = pdata->board_tcxo_clock;
- } else {
+ if (!tcxo_param && pdata->tcxo_clock_freq) {
+ priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
+ pdata->tcxo_clock_freq,
+ true);
+ if (priv->tcxo_clock < 0) {
+ wl1271_error("Invalid tcxo_clock frequency (%d Hz)",
+ pdata->tcxo_clock_freq);
+
+ return priv->tcxo_clock;
+ }
+ } else if (tcxo_param) {
if (!strcmp(tcxo_param, "19.2"))
priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
else if (!strcmp(tcxo_param, "26"))
diff --git a/drivers/net/wireless/ti/wl12xx/wl12xx.h b/drivers/net/wireless/ti/wl12xx/wl12xx.h
index 75c9265..5952e99a 100644
--- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
@@ -82,6 +82,34 @@ struct wl12xx_priv {
struct wl127x_rx_mem_pool_addr *rx_mem_addr;
};
+/* Reference clock values */
+enum {
+ WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
+ WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
+ WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
+ WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
+ WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
+ WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
+};
+
+/* TCXO clock values */
+enum {
+ WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
+ WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
+ WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
+ WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
+ WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
+ WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
+ WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
+ WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
+};
+
+struct wl12xx_clock {
+ u32 freq;
+ bool xtal;
+ u8 hw_idx;
+};
+
struct wl12xx_fw_packet_counters {
/* Cumulative counter of released packets per AC */
u8 tx_released_pkts[NUM_TX_QUEUES];
diff --git a/include/linux/wl12xx.h b/include/linux/wl12xx.h
index 3876b67..eea1e6d 100644
--- a/include/linux/wl12xx.h
+++ b/include/linux/wl12xx.h
@@ -26,28 +26,6 @@
#include <linux/err.h>
-/* Reference clock values */
-enum {
- WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
- WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
- WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
- WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
- WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
- WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
-};
-
-/* TCXO clock values */
-enum {
- WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
- WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
- WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
- WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
- WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
- WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
- WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
- WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
-};
-
struct wl1251_platform_data {
int power_gpio;
/* SDIO only: IRQ number if WLAN_IRQ line is used, 0 for SDIO IRQs */
@@ -58,8 +36,9 @@ struct wl1251_platform_data {
struct wl12xx_platform_data {
int irq;
u32 irq_trigger;
- int board_ref_clock;
- int board_tcxo_clock;
+ bool ref_clock_xtal; /* specify whether the clock is XTAL or not */
+ u32 ref_clock_freq; /* in Hertz */
+ u32 tcxo_clock_freq; /* in Hertz, tcxo is always XTAL */
bool pwr_in_suspend;
};
--
1.8.5.2.229.g4448466.dirty
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