[PATCH 6/7] ARM: shmobile: use FSI driver's audio clock on mackerel
Simon Horman
horms at verge.net.au
Fri Nov 9 02:31:45 EST 2012
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Current FSI driver can control audio clock without platform
call-back functions
This patch removed board-specific call-back/settings
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Signed-off-by: Simon Horman <horms at verge.net.au>
---
arch/arm/mach-shmobile/board-mackerel.c | 72 +------------------------------
1 file changed, 1 insertion(+), 71 deletions(-)
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index d5fe365..bf2bcb9 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -862,76 +862,6 @@ static struct platform_device leds_device = {
/* FSI */
#define IRQ_FSI evt2irq(0x1840)
-static int __fsi_set_round_rate(struct clk *clk, long rate, int enable)
-{
- int ret;
-
- if (rate <= 0)
- return 0;
-
- if (!enable) {
- clk_disable(clk);
- return 0;
- }
-
- ret = clk_set_rate(clk, clk_round_rate(clk, rate));
- if (ret < 0)
- return ret;
-
- return clk_enable(clk);
-}
-
-static int fsi_b_set_rate(struct device *dev, int rate, int enable)
-{
- struct clk *fsib_clk;
- struct clk *fdiv_clk = clk_get(NULL, "fsidivb");
- long fsib_rate = 0;
- long fdiv_rate = 0;
- int ackmd_bpfmd;
- int ret;
-
- /* clock start */
- switch (rate) {
- case 44100:
- fsib_rate = rate * 256;
- ackmd_bpfmd = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
- break;
- case 48000:
- fsib_rate = 85428000; /* around 48kHz x 256 x 7 */
- fdiv_rate = rate * 256;
- ackmd_bpfmd = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
- break;
- default:
- pr_err("unsupported rate in FSI2 port B\n");
- return -EINVAL;
- }
-
- /* FSI B setting */
- fsib_clk = clk_get(dev, "ickb");
- if (IS_ERR(fsib_clk))
- return -EIO;
-
- /* fsib */
- ret = __fsi_set_round_rate(fsib_clk, fsib_rate, enable);
- if (ret < 0)
- goto fsi_set_rate_end;
-
- /* FSI DIV */
- ret = __fsi_set_round_rate(fdiv_clk, fdiv_rate, enable);
- if (ret < 0) {
- /* disable FSI B */
- if (enable)
- __fsi_set_round_rate(fsib_clk, fsib_rate, 0);
- goto fsi_set_rate_end;
- }
-
- ret = ackmd_bpfmd;
-
-fsi_set_rate_end:
- clk_put(fsib_clk);
- return ret;
-}
-
static struct sh_fsi_platform_info fsi_info = {
.port_a = {
.flags = SH_FSI_BRS_INV,
@@ -942,8 +872,8 @@ static struct sh_fsi_platform_info fsi_info = {
.flags = SH_FSI_BRS_INV |
SH_FSI_BRM_INV |
SH_FSI_LRS_INV |
+ SH_FSI_CLK_CPG |
SH_FSI_FMT_SPDIF,
- .set_rate = fsi_b_set_rate,
}
};
--
1.7.10.4
More information about the linux-arm-kernel
mailing list