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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2010-10-31 10:43:14 -0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-10-31 10:43:14 -0400 |
| commit | 2669efec085bfc02006a452e1b5930f28bab959b (patch) | |
| tree | 20ee1c0f5b9d19ceedd9b17f1d6f129c83d393a0 | |
| parent | f2ace4a5d754c07503326d66ec85bf65e03d729d (diff) | |
| download | linux-2669efec085bfc02006a452e1b5930f28bab959b.tar.gz linux-2669efec085bfc02006a452e1b5930f28bab959b.tar.bz2 linux-2669efec085bfc02006a452e1b5930f28bab959b.zip | |
ARM: mach-shmobile: ap4evb: Add HDMI sound support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index 46ca4d4abf91..32d9e2816e56 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -565,12 +565,50 @@ static struct platform_device *qhd_devices[] __initdata = { /* FSI */ #define IRQ_FSI evt2irq(0x1840) + +static int fsi_set_rate(int is_porta, int rate) +{ + struct clk *fsib_clk; + struct clk *fdiv_clk = &sh7372_fsidivb_clk; + int ret; + + /* set_rate is not needed if port A */ + if (is_porta) + return 0; + + fsib_clk = clk_get(NULL, "fsib_clk"); + if (IS_ERR(fsib_clk)) + return -EINVAL; + + switch (rate) { + case 48000: + clk_set_rate(fsib_clk, clk_round_rate(fsib_clk, 85428000)); + clk_set_rate(fdiv_clk, clk_round_rate(fdiv_clk, 12204000)); + ret = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64; + break; + default: + pr_err("unsupported rate in FSI2 port B\n"); + ret = -EINVAL; + break; + } + + clk_put(fsib_clk); + + return ret; +} + static struct sh_fsi_platform_info fsi_info = { .porta_flags = SH_FSI_BRS_INV | SH_FSI_OUT_SLAVE_MODE | SH_FSI_IN_SLAVE_MODE | SH_FSI_OFMT(PCM) | SH_FSI_IFMT(PCM), + + .portb_flags = SH_FSI_BRS_INV | + SH_FSI_BRM_INV | + SH_FSI_LRS_INV | + SH_FSI_OFMT(SPDIF), + .set_rate = fsi_set_rate, }; static struct resource fsi_resources[] = { @@ -634,6 +672,7 @@ static struct platform_device lcdc1_device = { static struct sh_mobile_hdmi_info hdmi_info = { .lcd_chan = &sh_mobile_lcdc1_info.ch[0], .lcd_dev = &lcdc1_device.dev, + .flags = HDMI_SND_SRC_SPDIF, }; static struct resource hdmi_resources[] = { @@ -992,6 +1031,7 @@ static void __init ap4evb_map_io(void) #define GPIO_PORT9CR 0xE6051009 #define GPIO_PORT10CR 0xE605100A +#define USCCR1 0xE6058144 static void __init ap4evb_init(void) { u32 srcr4; @@ -1062,7 +1102,7 @@ static void __init ap4evb_init(void) /* setup USB phy */ __raw_writew(0x8a0a, 0xE6058130); /* USBCR2 */ - /* enable FSI2 */ + /* enable FSI2 port A (ak4643) */ gpio_request(GPIO_FN_FSIAIBT, NULL); gpio_request(GPIO_FN_FSIAILR, NULL); gpio_request(GPIO_FN_FSIAISLD, NULL); @@ -1079,6 +1119,10 @@ static void __init ap4evb_init(void) gpio_request(GPIO_PORT41, NULL); gpio_direction_input(GPIO_PORT41); + /* setup FSI2 port B (HDMI) */ + gpio_request(GPIO_FN_FSIBCK, NULL); + __raw_writew(__raw_readw(USCCR1) & ~(1 << 6), USCCR1); /* use SPDIF */ + /* set SPU2 clock to 119.6 MHz */ clk = clk_get(NULL, "spu_clk"); if (!IS_ERR(clk)) { |