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path: root/drivers/gpu/drm/i915/intel_dsi_pll.c
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2014-08-08drm/i915: Align intel_dsi*.c files a bitDaniel Vetter
I'm not really that insisting on checkpath compliance, but ragged function paramter alignment does get me. Please adjust your editor to just do this for you. Cc: Shobhit Kumar <shobhit.kumar@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-08-08drm/i915: Add support for Video Burst Mode for MIPI DSIShobhit Kumar
v2: Updated the error log as suggested by Imre Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-08-07drm/i915: Add correct hw/sw config check for DSI encoderShobhit Kumar
Check in vlv_crtc_clock_get if DPLL is enabled before calling dpio read. It will not be enabled for DSI and avoid dpio read WARN dumps. Absence of ->get_config was causing other WARN dumps as well. Update dpll_hw_state as well correctly v2: Address review comments by Daniel - Check if DPLL is enabled rather than checking pipe output type - set adjusted_mode->flags to 0 in compute_config rather than using pipe_config->quirks - Add helper function in intel_dsi_pll.c and use that in intel_dsi.c - updated dpll_hw_state correctly - Updated commit message and title v3: Address review comments by Imre - Proper masking of P1, M1 fields while computing divisors - assert in case of bpp mismatch - guard for divide by 0 while computing pclk - Use ARRAY_SIZE instead of direct calculation Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-12-11drm/i915: Try harder to get best m, n, p values with minimal errorShobhit Kumar
Basically check for both +ive and -ive deviation from target clock and pick the one with minimal error. If we get a direct match, break from loop to acheive some optimization. v2: Use signed variable for target and calculated dsi clock values Signed-off-by: Vijayakumar Balakrishnan <vijayakumar.balakrishnan@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-12-11drm/i915: Compute dsi_clk from pixel clockShobhit Kumar
Pixel clock based calculation is recommended in the MIPI host controller documentation v2: Based on review comments from Jani and Ville - Use dsi_clk in KHz rather than converting in Hz and back to MHz - RR formula is retained though not used but return dsi_clk in KHz now - Moved the m-n-p changes into a separate patch - Removed the parameter check for intel_dsi->dsi_clock_freq. This will be bought back in if needed when appropriate panel drivers are done v3: Removed the unused mnp calculation from static table Signed-off-by: Vijayakumar Balakrishnan <vijayakumar.balakrishnan@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16drm/i915: Use adjusted_mode in DSI PLL calculationsVille Syrjälä
adjusted_mode contains our real timings, not requested_mode. Use the correct thing in DSI PLL code. Also constify adjusted_mode since we don't change it. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-04drm/i915: add VLV DSI PLL Calculationsymohanma
v2: - Grab dpio_lock mutex in vlv_enable_dsi_pll(). - Add and call vlv_disable_dsi_pll(). v3: Mostly based on Ville's review comments. - Only pipe A has DSI PLL lock bit. - Add more of CCK REG bit definitions for DSI PLL. - Make tables static. - Move clock gating out of the clock calculation functions. - DSI PLL LDO power gating. - Put alternative MNP from table calc behind #ifdef. v4: s/CKK/CLK/ in the CCK REG bit definitions (Ville). Signed-off-by: ymohanma <yogesh.mohan.marimuthu@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>