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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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ARM: mach-shmobile: mackerel: add HDMI video 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
Paul Mundt
parent
73674648e9
commit
12c4309b78
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@ -21,6 +21,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/delay.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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@ -43,6 +44,7 @@
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#include <linux/tca6416_keypad.h>
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#include <linux/usb/r8a66597.h>
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#include <video/sh_mobile_hdmi.h>
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#include <video/sh_mobile_lcdc.h>
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#include <media/sh_mobile_ceu.h>
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#include <media/soc_camera.h>
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@ -332,6 +334,127 @@ static struct platform_device lcdc_device = {
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},
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};
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/* HDMI */
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static struct sh_mobile_lcdc_info hdmi_lcdc_info = {
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.clock_source = LCDC_CLK_EXTERNAL,
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.ch[0] = {
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.chan = LCDC_CHAN_MAINLCD,
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.bpp = 16,
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.interface_type = RGB24,
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.clock_divider = 1,
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.flags = LCDC_FLAGS_DWPOL,
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}
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};
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static struct resource hdmi_lcdc_resources[] = {
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[0] = {
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.name = "LCDC1",
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.start = 0xfe944000,
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.end = 0xfe947fff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = intcs_evt2irq(0x1780),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device hdmi_lcdc_device = {
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.name = "sh_mobile_lcdc_fb",
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.num_resources = ARRAY_SIZE(hdmi_lcdc_resources),
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.resource = hdmi_lcdc_resources,
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.id = 1,
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.dev = {
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.platform_data = &hdmi_lcdc_info,
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.coherent_dma_mask = ~0,
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},
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};
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static struct sh_mobile_hdmi_info hdmi_info = {
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.lcd_chan = &hdmi_lcdc_info.ch[0],
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.lcd_dev = &hdmi_lcdc_device.dev,
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};
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static struct resource hdmi_resources[] = {
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[0] = {
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.name = "HDMI",
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.start = 0xe6be0000,
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.end = 0xe6be00ff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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/* There's also an HDMI interrupt on INTCS @ 0x18e0 */
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.start = evt2irq(0x17e0),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device hdmi_device = {
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.name = "sh-mobile-hdmi",
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.num_resources = ARRAY_SIZE(hdmi_resources),
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.resource = hdmi_resources,
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.id = -1,
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.dev = {
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.platform_data = &hdmi_info,
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},
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};
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static int __init hdmi_init_pm_clock(void)
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{
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struct clk *hdmi_ick = clk_get(&hdmi_device.dev, "ick");
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int ret;
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long rate;
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if (IS_ERR(hdmi_ick)) {
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ret = PTR_ERR(hdmi_ick);
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pr_err("Cannot get HDMI ICK: %d\n", ret);
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goto out;
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}
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ret = clk_set_parent(&sh7372_pllc2_clk, &sh7372_dv_clki_div2_clk);
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if (ret < 0) {
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pr_err("Cannot set PLLC2 parent: %d, %d users\n",
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ret, sh7372_pllc2_clk.usecount);
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goto out;
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}
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pr_debug("PLLC2 initial frequency %lu\n",
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clk_get_rate(&sh7372_pllc2_clk));
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rate = clk_round_rate(&sh7372_pllc2_clk, 594000000);
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if (rate < 0) {
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pr_err("Cannot get suitable rate: %ld\n", rate);
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ret = rate;
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goto out;
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}
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ret = clk_set_rate(&sh7372_pllc2_clk, rate);
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if (ret < 0) {
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pr_err("Cannot set rate %ld: %d\n", rate, ret);
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goto out;
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}
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ret = clk_enable(&sh7372_pllc2_clk);
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if (ret < 0) {
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pr_err("Cannot enable pllc2 clock\n");
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goto out;
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}
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pr_debug("PLLC2 set frequency %lu\n", rate);
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ret = clk_set_parent(hdmi_ick, &sh7372_pllc2_clk);
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if (ret < 0) {
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pr_err("Cannot set HDMI parent: %d\n", ret);
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goto out;
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}
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out:
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if (!IS_ERR(hdmi_ick))
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clk_put(hdmi_ick);
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return ret;
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}
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device_initcall(hdmi_init_pm_clock);
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/* USB1 (Host) */
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static void usb1_host_port_power(int port, int power)
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{
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@ -718,6 +841,8 @@ static struct platform_device *mackerel_devices[] __initdata = {
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&sh_mmcif_device,
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&ceu_device,
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&mackerel_camera,
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&hdmi_lcdc_device,
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&hdmi_device,
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};
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/* Keypad Initialization */
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@ -793,8 +918,11 @@ static void __init mackerel_map_io(void)
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#define GPIO_PORT9CR 0xE6051009
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#define GPIO_PORT10CR 0xE605100A
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#define SRCR4 0xe61580bc
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static void __init mackerel_init(void)
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{
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u32 srcr4;
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sh7372_pinmux_init();
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/* enable SCIFA0 */
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@ -935,6 +1063,16 @@ static void __init mackerel_init(void)
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gpio_request(GPIO_FN_VIO_D1, NULL);
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gpio_request(GPIO_FN_VIO_D0, NULL);
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/* HDMI */
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gpio_request(GPIO_FN_HDMI_HPD, NULL);
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gpio_request(GPIO_FN_HDMI_CEC, NULL);
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/* Reset HDMI, must be held at least one EXTALR (32768Hz) period */
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srcr4 = __raw_readl(SRCR4);
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__raw_writel(srcr4 | (1 << 13), SRCR4);
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udelay(50);
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__raw_writel(srcr4 & ~(1 << 13), SRCR4);
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i2c_register_board_info(0, i2c0_devices,
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ARRAY_SIZE(i2c0_devices));
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i2c_register_board_info(1, i2c1_devices,
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@ -949,6 +1087,9 @@ static void __init mackerel_timer_init(void)
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{
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sh7372_clock_init();
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shmobile_timer.init();
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/* External clock source */
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clk_set_rate(&sh7372_dv_clki_clk, 27000000);
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}
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static struct sys_timer mackerel_timer = {
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