diff mbox series

[v2,25/25] drm/i915/tgl: Update DPLL clock reference register

Message ID 20190708231629.9296-26-lucas.demarchi@intel.com (mailing list archive)
State New, archived
Headers show
Series [v2,01/25] drm/i915: Add 4th pipe and transcoder | expand

Commit Message

Lucas De Marchi July 8, 2019, 11:16 p.m. UTC
From: José Roberto de Souza <jose.souza@intel.com>

This register definition changed from ICL and has now another meaning.
Use the right bits on TGL.

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 8 ++++++--
 drivers/gpu/drm/i915/i915_reg.h               | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

Comments

Ville Syrjälä July 9, 2019, 12:48 p.m. UTC | #1
On Mon, Jul 08, 2019 at 04:16:29PM -0700, Lucas De Marchi wrote:
> From: José Roberto de Souza <jose.souza@intel.com>
> 
> This register definition changed from ICL and has now another meaning.
> Use the right bits on TGL.
> 
> Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 8 ++++++--
>  drivers/gpu/drm/i915/i915_reg.h               | 1 +
>  2 files changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> index 330b42a1f54e..9793039485e5 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> @@ -2597,8 +2597,12 @@ static bool icl_calc_dpll_state(struct intel_crtc_state *crtc_state,
>  	cfgcr1 = DPLL_CFGCR1_QDIV_RATIO(pll_params.qdiv_ratio) |
>  		 DPLL_CFGCR1_QDIV_MODE(pll_params.qdiv_mode) |
>  		 DPLL_CFGCR1_KDIV(pll_params.kdiv) |
> -		 DPLL_CFGCR1_PDIV(pll_params.pdiv) |
> -		 DPLL_CFGCR1_CENTRAL_FREQ_8400;
> +		 DPLL_CFGCR1_PDIV(pll_params.pdiv);
> +
> +	if (INTEL_GEN(dev_priv) >= 12)
> +		cfgcr1 |= TGL_DPLL_CFGCR1_CFSELOVRD_NORMAL_XTAL;
> +	else
> +		cfgcr1 |= DPLL_CFGCR1_CENTRAL_FREQ_8400;
>  
>  	memset(pll_state, 0, sizeof(*pll_state));
>  
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 84c04ea67ec8..a244e8158aee 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9947,6 +9947,7 @@ enum skl_power_gate {
>  #define  DPLL_CFGCR1_PDIV_7		(8 << 2)
>  #define  DPLL_CFGCR1_CENTRAL_FREQ	(3 << 0)
>  #define  DPLL_CFGCR1_CENTRAL_FREQ_8400	(3 << 0)
> +#define  TGL_DPLL_CFGCR1_CFSELOVRD_NORMAL_XTAL	(0 << 0)

I'd probably leave this out entirely if we're not going to define the
other values of thess bits.

Either way
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

>  #define CNL_DPLL_CFGCR1(pll)		_MMIO_PLL(pll, _CNL_DPLL0_CFGCR1, _CNL_DPLL1_CFGCR1)
>  
>  #define _ICL_DPLL0_CFGCR0		0x164000
> -- 
> 2.21.0
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 330b42a1f54e..9793039485e5 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -2597,8 +2597,12 @@  static bool icl_calc_dpll_state(struct intel_crtc_state *crtc_state,
 	cfgcr1 = DPLL_CFGCR1_QDIV_RATIO(pll_params.qdiv_ratio) |
 		 DPLL_CFGCR1_QDIV_MODE(pll_params.qdiv_mode) |
 		 DPLL_CFGCR1_KDIV(pll_params.kdiv) |
-		 DPLL_CFGCR1_PDIV(pll_params.pdiv) |
-		 DPLL_CFGCR1_CENTRAL_FREQ_8400;
+		 DPLL_CFGCR1_PDIV(pll_params.pdiv);
+
+	if (INTEL_GEN(dev_priv) >= 12)
+		cfgcr1 |= TGL_DPLL_CFGCR1_CFSELOVRD_NORMAL_XTAL;
+	else
+		cfgcr1 |= DPLL_CFGCR1_CENTRAL_FREQ_8400;
 
 	memset(pll_state, 0, sizeof(*pll_state));
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 84c04ea67ec8..a244e8158aee 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -9947,6 +9947,7 @@  enum skl_power_gate {
 #define  DPLL_CFGCR1_PDIV_7		(8 << 2)
 #define  DPLL_CFGCR1_CENTRAL_FREQ	(3 << 0)
 #define  DPLL_CFGCR1_CENTRAL_FREQ_8400	(3 << 0)
+#define  TGL_DPLL_CFGCR1_CFSELOVRD_NORMAL_XTAL	(0 << 0)
 #define CNL_DPLL_CFGCR1(pll)		_MMIO_PLL(pll, _CNL_DPLL0_CFGCR1, _CNL_DPLL1_CFGCR1)
 
 #define _ICL_DPLL0_CFGCR0		0x164000