| Message ID | 20220831214958.109753-6-radhakrishna.sripada@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Initial Meteorlake Support | expand |
On 31.08.2022 14:49, Radhakrishna Sripada wrote: > Add tables to map the GMBUS pin pairs to GPIO registers and port to DDC. > From spec we have registers GPIO_CTL[1-5] mapped to native display phys and > GPIO_CTL[9-12] are mapped to TC ports. > > v2: > - Drop unused GPIO pins(MattR) > > BSpec: 49306 > > Cc: Matt Roper <matthew.d.roper@intel.com> > Original Author: Brian J Lovin > Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> > --- > drivers/gpu/drm/i915/display/intel_gmbus.c | 15 +++++++++++++++ > drivers/gpu/drm/i915/display/intel_gmbus.h | 1 + > 2 files changed, 16 insertions(+) Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> > > diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c > index 6f6cfccad477..74443f57f62d 100644 > --- a/drivers/gpu/drm/i915/display/intel_gmbus.c > +++ b/drivers/gpu/drm/i915/display/intel_gmbus.c > @@ -117,6 +117,18 @@ static const struct gmbus_pin gmbus_pins_dg2[] = { > [GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ }, > }; >
diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c index 6f6cfccad477..74443f57f62d 100644 --- a/drivers/gpu/drm/i915/display/intel_gmbus.c +++ b/drivers/gpu/drm/i915/display/intel_gmbus.c @@ -117,6 +117,18 @@ static const struct gmbus_pin gmbus_pins_dg2[] = { [GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ }, }; +static const struct gmbus_pin gmbus_pins_mtp[] = { + [GMBUS_PIN_1_BXT] = { "dpa", GPIOB }, + [GMBUS_PIN_2_BXT] = { "dpb", GPIOC }, + [GMBUS_PIN_3_BXT] = { "dpc", GPIOD }, + [GMBUS_PIN_4_CNP] = { "dpd", GPIOE }, + [GMBUS_PIN_5_MTP] = { "dpe", GPIOF }, + [GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ }, + [GMBUS_PIN_10_TC2_ICP] = { "tc2", GPIOK }, + [GMBUS_PIN_11_TC3_ICP] = { "tc3", GPIOL }, + [GMBUS_PIN_12_TC4_ICP] = { "tc4", GPIOM }, +}; + static const struct gmbus_pin *get_gmbus_pin(struct drm_i915_private *i915, unsigned int pin) { @@ -129,6 +141,9 @@ static const struct gmbus_pin *get_gmbus_pin(struct drm_i915_private *i915, } else if (INTEL_PCH_TYPE(i915) >= PCH_DG1) { pins = gmbus_pins_dg1; size = ARRAY_SIZE(gmbus_pins_dg1); + } else if (INTEL_PCH_TYPE(i915) >= PCH_MTP) { + pins = gmbus_pins_mtp; + size = ARRAY_SIZE(gmbus_pins_mtp); } else if (INTEL_PCH_TYPE(i915) >= PCH_ICP) { pins = gmbus_pins_icp; size = ARRAY_SIZE(gmbus_pins_icp); diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.h b/drivers/gpu/drm/i915/display/intel_gmbus.h index 8edc2e99cf53..20f704bd4e70 100644 --- a/drivers/gpu/drm/i915/display/intel_gmbus.h +++ b/drivers/gpu/drm/i915/display/intel_gmbus.h @@ -24,6 +24,7 @@ struct i2c_adapter; #define GMBUS_PIN_2_BXT 2 #define GMBUS_PIN_3_BXT 3 #define GMBUS_PIN_4_CNP 4 +#define GMBUS_PIN_5_MTP 5 #define GMBUS_PIN_9_TC1_ICP 9 #define GMBUS_PIN_10_TC2_ICP 10 #define GMBUS_PIN_11_TC3_ICP 11
Add tables to map the GMBUS pin pairs to GPIO registers and port to DDC. From spec we have registers GPIO_CTL[1-5] mapped to native display phys and GPIO_CTL[9-12] are mapped to TC ports. v2: - Drop unused GPIO pins(MattR) BSpec: 49306 Cc: Matt Roper <matthew.d.roper@intel.com> Original Author: Brian J Lovin Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> --- drivers/gpu/drm/i915/display/intel_gmbus.c | 15 +++++++++++++++ drivers/gpu/drm/i915/display/intel_gmbus.h | 1 + 2 files changed, 16 insertions(+)