diff options
| author | Anusha Srivatsa <anusha.srivatsa@intel.com> | 2018-01-11 21:00:09 +0300 |
|---|---|---|
| committer | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2018-01-19 23:02:52 +0300 |
| commit | 5c749c522faca5124d849c3327b5bfa668b122ca (patch) | |
| tree | 39c9558e6e89f2b359159223d29872c43b3c5ad3 /drivers/gpu/drm/i915/intel_i2c.c | |
| parent | ccf6e0d9774657892e6715d519ea1c48c692158a (diff) | |
| download | linux-5c749c522faca5124d849c3327b5bfa668b122ca.tar.xz | |
drm/i915/icp: add ICP gmbus and gpio support
In ICP, there are three TC ports and 3 DDI ports.
v2:
- Correct Pin mapping.
v3:
- Update pin mapping into per platform implementation
rather than previous approach of port wise mapping.
v4:
- Update GMBUS_NUM_PINS (Paulo)
v5:
- rebase.
v6:
- Update function name, GMBUS_PIN_NUM (Paulo)
v7 (from Paulo):
- Make it apply.
v8 (from Paulo):
- Maintain consistent if ladder ordering.
Suggested by: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180111180010.24357-8-paulo.r.zanoni@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_i2c.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_i2c.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index ef9f91a0b0c9..ad1b1a345f2e 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -75,11 +75,22 @@ static const struct gmbus_pin gmbus_pins_cnp[] = { [GMBUS_PIN_4_CNP] = { "dpd", GPIOE }, }; +static const struct gmbus_pin gmbus_pins_icp[] = { + [GMBUS_PIN_1_BXT] = { "dpa", GPIOA }, + [GMBUS_PIN_2_BXT] = { "dpb", GPIOB }, + [GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOC }, + [GMBUS_PIN_10_TC2_ICP] = { "tc2", GPIOD }, + [GMBUS_PIN_11_TC3_ICP] = { "tc3", GPIOE }, + [GMBUS_PIN_12_TC4_ICP] = { "tc4", GPIOF }, +}; + /* pin is expected to be valid */ static const struct gmbus_pin *get_gmbus_pin(struct drm_i915_private *dev_priv, unsigned int pin) { - if (HAS_PCH_CNP(dev_priv)) + if (HAS_PCH_ICP(dev_priv)) + return &gmbus_pins_icp[pin]; + else if (HAS_PCH_CNP(dev_priv)) return &gmbus_pins_cnp[pin]; else if (IS_GEN9_LP(dev_priv)) return &gmbus_pins_bxt[pin]; @@ -96,7 +107,9 @@ bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv, { unsigned int size; - if (HAS_PCH_CNP(dev_priv)) + if (HAS_PCH_ICP(dev_priv)) + size = ARRAY_SIZE(gmbus_pins_icp); + else if (HAS_PCH_CNP(dev_priv)) size = ARRAY_SIZE(gmbus_pins_cnp); else if (IS_GEN9_LP(dev_priv)) size = ARRAY_SIZE(gmbus_pins_bxt); |