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4 Commits

Author SHA1 Message Date
Tom Rix
03262a3f5b phy: mediatek: rework the floating point comparisons to fixed point 
gcc on aarch64 reports
drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c: In function ‘mtk_hdmi_pll_set_rate’:
drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c:240:52: error: ‘-mgeneral-regs-only’
  is incompatible with the use of floating-point types
  240 |         else if (tmds_clk >= 54 * MEGA && tmds_clk < 148.35 * MEGA)

Floating point should not be used, so rework the floating point comparisons
to fixed point.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20230502145005.2927101-1-trix@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2023-05-16 19:48:06 +05:30
Guillaume Ranquet
9d9ff3d2a4 phy: mediatek: hdmi: mt8195: fix wrong pll calculus 
The clock rate calculus in mtk_hdmi_pll_calc() was wrong when it has
been replaced by 'div_u64'.

Fix the issue by multiplying the values in the denominator instead of
dividing them.

Fixes: 45810d486bb44 ("phy: mediatek: add support for phy-mtk-hdmi-mt8195")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Link: https://lore.kernel.org/r/20230413-fixes-for-mt8195-hdmi-phy-v2-2-bbad62e64321@baylibre.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2023-05-04 23:12:11 +05:30
Guillaume Ranquet
714dd3c29a phy: mediatek: hdmi: mt8195: fix uninitialized variable usage in pll_calc 
The ret variable in mtk_hdmi_pll_calc() was used unitialized as reported
by the kernel test robot.

Fix the issue by removing the variable altogether and testing out the
return value of mtk_hdmi_pll_set_hw()

Fixes: 45810d486bb44 ("phy: mediatek: add support for phy-mtk-hdmi-mt8195")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230413-fixes-for-mt8195-hdmi-phy-v2-1-bbad62e64321@baylibre.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2023-05-04 23:12:11 +05:30
Guillaume Ranquet
45810d486b phy: mediatek: add support for phy-mtk-hdmi-mt8195 
Add support for the mediatek hdmi phy on MT8195 SoC

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Link: https://lore.kernel.org/r/20220919-v8-3-a84c80468fe9@baylibre.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2023-04-12 21:56:41 +05:30