linux-kernel - [PATCH v2 0/2] Fix mtk-hdmi-mt8195 unitialized variable usage and clock rate calculation

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Message-Id: <20230413-fixes-for-mt8195-hdmi-phy-v2-0-bbad62e64321@baylibre.com>
Date:   Fri, 14 Apr 2023 18:07:45 +0200
From:   Guillaume Ranquet <granquet@...libre.com>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Guillaume Ranquet <granquet@...libre.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH v2 0/2] Fix mtk-hdmi-mt8195 unitialized variable usage and
 clock rate calculation

I've received a report from kernel test report [1] that a variable was used
unitialized in the mtk8195 hdmi phy code.

I've upon fixing that issue found out that the clock rate calculation
was erroneous since the calculus was moved to div_u64.

I'm providing those two fixes on top of 45810d486bb44 from the linux-phy
repository [2].

[1] https://lore.kernel.org/oe-kbuild-all/202304130304.gMtrUdbd-lkp@intel.com/
[2] https://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git

Signed-off-by: Guillaume Ranquet <granquet@...libre.com>
---
Changes in v2:
- Propagate return value of mtk_hdmi_pll_set_hw() as suggested by Angelo

---
Guillaume Ranquet (2):
      phy: mediatek: hdmi: mt8195: fix uninitialized variable usage in pll_calc
      phy: mediatek: hdmi: mt8195: fix wrong pll calculus

 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)
---
base-commit: 45810d486bb44bd60213d5f09a713df81b987972
change-id: 20230413-fixes-for-mt8195-hdmi-phy-9e1513b5baad

Best regards,
-- 
Guillaume Ranquet <granquet@...libre.com>