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author | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-01-08 16:30:34 +0100 |
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committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-01-08 16:30:34 +0100 |
commit | 193984f43decedd2604547022e3a26249dc18b3e (patch) | |
tree | 5a2637a0fd775e4430fc537f8107f499eea470ea /arch/arm | |
parent | grvga: fix section mismatch warnings (diff) | |
parent | OMAPDSS: HDMI: Disable DDC internal pull up (diff) | |
download | linux-193984f43decedd2604547022e3a26249dc18b3e.tar.xz linux-193984f43decedd2604547022e3a26249dc18b3e.zip |
Merge branch 'for-florian' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-omap2/board-4430sdp.c | 23 | ||||
-rw-r--r-- | arch/arm/mach-omap2/board-omap4panda.c | 25 | ||||
-rw-r--r-- | arch/arm/mach-omap2/display.c | 39 |
3 files changed, 56 insertions, 31 deletions
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 515646886b59..e1fe304ce361 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -595,20 +595,6 @@ static void __init omap_sfh7741prox_init(void) __func__, OMAP4_SFH7741_ENABLE_GPIO, error); } -static void sdp4430_hdmi_mux_init(void) -{ - /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */ - omap_mux_init_signal("hdmi_hpd", - OMAP_PIN_INPUT_PULLUP); - omap_mux_init_signal("hdmi_cec", - OMAP_PIN_INPUT_PULLUP); - /* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */ - omap_mux_init_signal("hdmi_ddc_scl", - OMAP_PIN_INPUT_PULLUP); - omap_mux_init_signal("hdmi_ddc_sda", - OMAP_PIN_INPUT_PULLUP); -} - static struct gpio sdp4430_hdmi_gpios[] = { { HDMI_GPIO_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd" }, { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" }, @@ -826,9 +812,16 @@ static void omap_4430sdp_display_init(void) pr_err("%s: Could not get display_sel GPIO\n", __func__); sdp4430_lcd_init(); - sdp4430_hdmi_mux_init(); sdp4430_picodlp_init(); omap_display_init(&sdp4430_dss_data); + /* + * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and + * later have external pull up on the HDMI I2C lines + */ + if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2) + omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP); + else + omap_hdmi_init(0); } #ifdef CONFIG_OMAP_MUX diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index a8c2c4263e38..3e1c507fb01f 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -478,21 +478,6 @@ int __init omap4_panda_dvi_init(void) return r; } - -static void omap4_panda_hdmi_mux_init(void) -{ - /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */ - omap_mux_init_signal("hdmi_hpd", - OMAP_PIN_INPUT_PULLUP); - omap_mux_init_signal("hdmi_cec", - OMAP_PIN_INPUT_PULLUP); - /* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */ - omap_mux_init_signal("hdmi_ddc_scl", - OMAP_PIN_INPUT_PULLUP); - omap_mux_init_signal("hdmi_ddc_sda", - OMAP_PIN_INPUT_PULLUP); -} - static struct gpio panda_hdmi_gpios[] = { { HDMI_GPIO_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd" }, { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" }, @@ -544,8 +529,16 @@ void omap4_panda_display_init(void) if (r) pr_err("error initializing panda DVI\n"); - omap4_panda_hdmi_mux_init(); omap_display_init(&omap4_panda_dss_data); + + /* + * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and + * later have external pull up on the HDMI I2C lines + */ + if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2) + omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP); + else + omap_hdmi_init(0); } static void __init omap4_panda_init(void) diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index dce9905d64bb..ffd9bd983023 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -29,6 +29,7 @@ #include <plat/omap-pm.h> #include <plat/common.h> +#include "mux.h" #include "control.h" #include "display.h" @@ -96,6 +97,36 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = { { "dss_hdmi", "omapdss_hdmi", -1 }, }; +static void omap4_hdmi_mux_pads(enum omap_hdmi_flags flags) +{ + u32 reg; + u16 control_i2c_1; + + /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */ + omap_mux_init_signal("hdmi_hpd", + OMAP_PIN_INPUT_PULLUP); + omap_mux_init_signal("hdmi_cec", + OMAP_PIN_INPUT_PULLUP); + /* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */ + omap_mux_init_signal("hdmi_ddc_scl", + OMAP_PIN_INPUT_PULLUP); + omap_mux_init_signal("hdmi_ddc_sda", + OMAP_PIN_INPUT_PULLUP); + + /* + * CONTROL_I2C_1: HDMI_DDC_SDA_PULLUPRESX (bit 28) and + * HDMI_DDC_SCL_PULLUPRESX (bit 24) are set to disable + * internal pull up resistor. + */ + if (flags & OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP) { + control_i2c_1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_I2C_1; + reg = omap4_ctrl_pad_readl(control_i2c_1); + reg |= (OMAP4_HDMI_DDC_SDA_PULLUPRESX_MASK | + OMAP4_HDMI_DDC_SCL_PULLUPRESX_MASK); + omap4_ctrl_pad_writel(reg, control_i2c_1); + } +} + static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) { u32 enable_mask, enable_shift; @@ -129,6 +160,14 @@ static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) return 0; } +int omap_hdmi_init(enum omap_hdmi_flags flags) +{ + if (cpu_is_omap44xx()) + omap4_hdmi_mux_pads(flags); + + return 0; +} + static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask) { if (cpu_is_omap44xx()) |