ARM: dts: Disable HDMI CEC internal pull-ups
Devices using an external encoder, ESD protection and level shifter such as tpd12s015 or ip4791cz12 have the CEC pull in the encoder chip. And on var-som-om44, there is external pull up resistor R30. So the internal CEC pull-up resistor needs to be disabled as otherwise the external and internal pull are parallel making the pull value much smaller than intended. This leads into the CEC not working as reported by Hans Verkuil <hverkuil@xs4all.nl>. Reported-by: Hans Verkuil <hverkuil@xs4all.nl> Cc: Dmitry Lifshitz <lifshitz@compulab.co.il> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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@ -373,7 +373,7 @@
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/* hdmi_cec.hdmi_cec, hdmi_scl.hdmi_scl, hdmi_sda.hdmi_sda */
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/* hdmi_cec.hdmi_cec, hdmi_scl.hdmi_scl, hdmi_sda.hdmi_sda */
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0)
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OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0)
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OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0)
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OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0)
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OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0)
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OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0)
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>;
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>;
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@ -100,7 +100,7 @@
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP4_IOPAD(0x098, PIN_INPUT | MUX_MODE3) /* hdmi_hpd.gpio_63 */
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OMAP4_IOPAD(0x098, PIN_INPUT | MUX_MODE3) /* hdmi_hpd.gpio_63 */
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OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_ddc_scl.hdmi_ddc_scl */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_ddc_scl.hdmi_ddc_scl */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_ddc_sda.hdmi_ddc_sda */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_ddc_sda.hdmi_ddc_sda */
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>;
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>;
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@ -267,7 +267,7 @@
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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>;
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>;
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@ -10,7 +10,7 @@
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/* SDP boards with 4430 ES2.3+ or 4460 have external pullups on SCL & SDA */
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/* SDP boards with 4430 ES2.3+ or 4460 have external pullups on SCL & SDA */
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&dss_hdmi_pins {
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&dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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>;
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>;
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@ -290,7 +290,7 @@
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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>;
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>;
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@ -122,7 +122,7 @@
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
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>;
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>;
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@ -290,7 +290,7 @@
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP5_IOPAD(0x13c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP5_IOPAD(0x13c, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
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OMAP5_IOPAD(0x140, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_scl.hdmi_ddc_scl */
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OMAP5_IOPAD(0x140, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_scl.hdmi_ddc_scl */
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OMAP5_IOPAD(0x142, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_sda.hdmi_ddc_sda */
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OMAP5_IOPAD(0x142, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_sda.hdmi_ddc_sda */
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>;
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>;
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@ -266,7 +266,7 @@
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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dss_hdmi_pins: pinmux_dss_hdmi_pins {
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pinctrl-single,pins = <
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pinctrl-single,pins = <
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OMAP5_IOPAD(0x013c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec */
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OMAP5_IOPAD(0x013c, PIN_INPUT | MUX_MODE0) /* hdmi_cec */
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OMAP5_IOPAD(0x0140, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_scl */
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OMAP5_IOPAD(0x0140, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_scl */
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OMAP5_IOPAD(0x0142, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_sda */
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OMAP5_IOPAD(0x0142, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_sda */
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>;
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>;
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