Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-19 02:21:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: mach-shmobile: mackerel: add HDMI video support

Browse Source 
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 2011-01-06 02:44:09 +00:00 committed by Paul Mundt
parent 73674648e9
commit 12c4309b78
1 changed files with 141 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

141
arch/arm/mach-shmobile/board-mackerel.c
View File

@ -21,6 +21,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@ -43,6 +44,7 @@
#include <linux/tca6416_keypad.h>
#include <linux/usb/r8a66597.h>
#include <video/sh_mobile_hdmi.h>
#include <video/sh_mobile_lcdc.h>
#include <media/sh_mobile_ceu.h>
#include <media/soc_camera.h>
@ -332,6 +334,127 @@ static struct platform_device lcdc_device = {
},
};
/* HDMI */
static struct sh_mobile_lcdc_info hdmi_lcdc_info = {
.clock_source = LCDC_CLK_EXTERNAL,
.ch[0] = {
.chan = LCDC_CHAN_MAINLCD,
.bpp = 16,
.interface_type = RGB24,
.clock_divider = 1,
.flags = LCDC_FLAGS_DWPOL,
}
};
static struct resource hdmi_lcdc_resources[] = {
[0] = {
.name = "LCDC1",
.start = 0xfe944000,
.end = 0xfe947fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = intcs_evt2irq(0x1780),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device hdmi_lcdc_device = {
.name = "sh_mobile_lcdc_fb",
.num_resources = ARRAY_SIZE(hdmi_lcdc_resources),
.resource = hdmi_lcdc_resources,
.id = 1,
.dev = {
.platform_data = &hdmi_lcdc_info,
.coherent_dma_mask = ~0,
},
};
static struct sh_mobile_hdmi_info hdmi_info = {
.lcd_chan = &hdmi_lcdc_info.ch[0],
.lcd_dev = &hdmi_lcdc_device.dev,
};
static struct resource hdmi_resources[] = {
[0] = {
.name = "HDMI",
.start = 0xe6be0000,
.end = 0xe6be00ff,
.flags = IORESOURCE_MEM,
},
[1] = {
/* There's also an HDMI interrupt on INTCS @ 0x18e0 */
.start = evt2irq(0x17e0),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device hdmi_device = {
.name = "sh-mobile-hdmi",
.num_resources = ARRAY_SIZE(hdmi_resources),
.resource = hdmi_resources,
.id = -1,
.dev = {
.platform_data = &hdmi_info,
},
};
static int __init hdmi_init_pm_clock(void)
{
struct clk *hdmi_ick = clk_get(&hdmi_device.dev, "ick");
int ret;
long rate;
if (IS_ERR(hdmi_ick)) {
ret = PTR_ERR(hdmi_ick);
pr_err("Cannot get HDMI ICK: %d\n", ret);
goto out;
}
ret = clk_set_parent(&sh7372_pllc2_clk, &sh7372_dv_clki_div2_clk);
if (ret < 0) {
pr_err("Cannot set PLLC2 parent: %d, %d users\n",
ret, sh7372_pllc2_clk.usecount);
goto out;
}
pr_debug("PLLC2 initial frequency %lu\n",
clk_get_rate(&sh7372_pllc2_clk));
rate = clk_round_rate(&sh7372_pllc2_clk, 594000000);
if (rate < 0) {
pr_err("Cannot get suitable rate: %ld\n", rate);
ret = rate;
goto out;
}
ret = clk_set_rate(&sh7372_pllc2_clk, rate);
if (ret < 0) {
pr_err("Cannot set rate %ld: %d\n", rate, ret);
goto out;
}
ret = clk_enable(&sh7372_pllc2_clk);
if (ret < 0) {
pr_err("Cannot enable pllc2 clock\n");
goto out;
}
pr_debug("PLLC2 set frequency %lu\n", rate);
ret = clk_set_parent(hdmi_ick, &sh7372_pllc2_clk);
if (ret < 0) {
pr_err("Cannot set HDMI parent: %d\n", ret);
goto out;
}
out:
if (!IS_ERR(hdmi_ick))
clk_put(hdmi_ick);
return ret;
}
device_initcall(hdmi_init_pm_clock);
/* USB1 (Host) */
static void usb1_host_port_power(int port, int power)
{
@ -718,6 +841,8 @@ static struct platform_device *mackerel_devices[] __initdata = {
&sh_mmcif_device,
&ceu_device,
&mackerel_camera,
&hdmi_lcdc_device,
&hdmi_device,
};
/* Keypad Initialization */
@ -793,8 +918,11 @@ static void __init mackerel_map_io(void)
#define GPIO_PORT9CR 0xE6051009
#define GPIO_PORT10CR 0xE605100A
#define SRCR4 0xe61580bc
static void __init mackerel_init(void)
{
u32 srcr4;
sh7372_pinmux_init();
/* enable SCIFA0 */
@ -935,6 +1063,16 @@ static void __init mackerel_init(void)
gpio_request(GPIO_FN_VIO_D1, NULL);
gpio_request(GPIO_FN_VIO_D0, NULL);
/* HDMI */
gpio_request(GPIO_FN_HDMI_HPD, NULL);
gpio_request(GPIO_FN_HDMI_CEC, NULL);
/* Reset HDMI, must be held at least one EXTALR (32768Hz) period */
srcr4 = __raw_readl(SRCR4);
__raw_writel(srcr4 | (1 << 13), SRCR4);
udelay(50);
__raw_writel(srcr4 & ~(1 << 13), SRCR4);
i2c_register_board_info(0, i2c0_devices,
ARRAY_SIZE(i2c0_devices));
i2c_register_board_info(1, i2c1_devices,
@ -949,6 +1087,9 @@ static void __init mackerel_timer_init(void)
{
sh7372_clock_init();
shmobile_timer.init();
/* External clock source */
clk_set_rate(&sh7372_dv_clki_clk, 27000000);
}
static struct sys_timer mackerel_timer = {