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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>
This commit is contained in:
Kuninori Morimoto 2010-10-31 10:43:14 -04:00 committed by Paul Mundt
parent f2ace4a5d7
commit 2669efec08
1 changed files with 45 additions and 1 deletions
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46
arch/arm/mach-shmobile/board-ap4evb.c
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@ -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)) {