From: Damien Lespiau <[email protected]> SBI_GEN0 is used instead of SBI_DBUFF0 on ULT platforms.
Signed-off-by: Damien Lespiau <[email protected]> --- drivers/gpu/drm/i915/i915_reg.h | 2 ++ drivers/gpu/drm/i915/intel_display.c | 12 +++++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index acf768d..90c4f43 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4563,6 +4563,8 @@ #define SBI_SSCAUXDIV_FINALDIV2SEL(x) ((x)<<4) #define SBI_DBUFF0 0x2a00 #define SBI_DBUFF0_ENABLE (1<<0) +#define SBI_GEN0 0x1f00 +#define SBI_GEN0_ENABLE (1<<0) /* LPT PIXCLK_GATE */ #define PIXCLK_GATE 0xC6020 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0eba466..6472065 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5132,9 +5132,15 @@ static void lpt_init_pch_refclk(struct drm_device *dev) intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); } - tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK); - tmp |= SBI_DBUFF0_ENABLE; - intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK); + if (IS_ULT(dev)) { + tmp = intel_sbi_read(dev_priv, SBI_GEN0, SBI_ICLK); + tmp |= SBI_GEN0_ENABLE; + intel_sbi_write(dev_priv, SBI_GEN0, tmp, SBI_ICLK); + } else { + tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK); + tmp |= SBI_DBUFF0_ENABLE; + intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK); + } } /* -- 1.7.7.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
