On Sat, 06 Aug 2016, Bob Paauwe <bob.j.paauwe@xxxxxxxxx> wrote: > On Fri, 5 Aug 2016 15:23:23 -0700 > "Xiong, James" <james.xiong@xxxxxxxxx> wrote: > >> Reviewed-by James Xiong <james.xiong@xxxxxxxxx> > > Merged to gold. Thanks for the review. What does this mean? Why do you Cc both internal and external lists? BR, Jani. > > Bob >> >> -----Original Message----- >> From: isg-gms-request@xxxxxxxxxxxxxxxxx [mailto:isg-gms-request@xxxxxxxxxxxxxxxxx] On Behalf Of Paauwe, Bob J >> Sent: Thursday, August 4, 2016 11:16 AM >> To: isg-gms <isg-gms@xxxxxxxxxxxxxxxxx>; intel-gfx <intel-gfx@xxxxxxxxxxxxxxxxxxxxx> >> Cc: Paauwe, Bob J <bob.j.paauwe@xxxxxxxxx> >> Subject: [isg-gms] [PATCH] drm/i915/bxt: Bring MIPI out of reset >> >> and power up the DSI regulator when initializing a MIPI display. >> >> Signed-off-by: Bob Paauwe <bob.j.paauwe@xxxxxxxxx> >> --- >> drivers/gpu/drm/i915/i915_reg.h | 8 ++++++++ drivers/gpu/drm/i915/intel_dsi.c | 13 +++++++++++++ >> 2 files changed, 21 insertions(+) >> >> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 6607aaf..da29d74 100644 >> --- a/drivers/gpu/drm/i915/i915_reg.h >> +++ b/drivers/gpu/drm/i915/i915_reg.h >> @@ -1262,11 +1262,19 @@ enum skl_disp_power_wells { #define CHV_TX_DW14(ch, lane) _TXLANE(ch, lane, 0xb8) >> #define DPIO_UPAR_SHIFT 30 >> >> +/* BXT DSI Regulator registers */ >> +#define BXT_DSI_CFG _MMIO(0x160020) >> +#define STRAP_SELECT (1 << 0) >> + >> +#define BXT_DSI_TXCNTRL _MMIO(0x160054) >> +#define HS_IO_CONTROL_SELECT 0x0 >> + >> /* BXT PHY registers */ >> #define _BXT_PHY(phy, a, b) _MMIO_PIPE((phy), (a), (b)) >> >> #define BXT_P_CR_GT_DISP_PWRON _MMIO(0x138090) >> #define GT_DISPLAY_POWER_ON(phy) (1 << (phy)) >> +#define MIPIO_RST_CTRL (1 << 2) >> >> #define _PHY_CTL_FAMILY_EDP 0x64C80 >> #define _PHY_CTL_FAMILY_DDI 0x64C90 >> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c >> index b2d2cba..c2aa9e1 100644 >> --- a/drivers/gpu/drm/i915/intel_dsi.c >> +++ b/drivers/gpu/drm/i915/intel_dsi.c >> @@ -549,6 +549,19 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder) >> I915_WRITE(DSPCLK_GATE_D, tmp); >> } >> >> + if (IS_BROXTON(dev)) { >> + /* >> + * Bring the MIPI IO out of reset and power up >> + * the DSI regulator. >> + */ >> + tmp = I915_READ(BXT_P_CR_GT_DISP_PWRON); >> + tmp |= MIPIO_RST_CTRL; >> + I915_WRITE(BXT_P_CR_GT_DISP_PWRON, tmp); >> + >> + I915_WRITE(BXT_DSI_CFG, STRAP_SELECT); >> + I915_WRITE(BXT_DSI_TXCNTRL, HS_IO_CONTROL_SELECT); >> + } >> + >> /* put device in ready state */ >> intel_dsi_device_ready(encoder); >> >> -- >> 2.7.4 >> >> ------------------------------------- >> isg-gms@xxxxxxxxxxxxxxxxx >> https://eclists.intel.com/sympa/info/isg-gms >> Unsubscribe by sending email to sympa@xxxxxxxxxxxxxxxxx with subject "Unsubscribe isg-gms" -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
