Re: [PATCH 2/2] phy: mtk-mipi-csi: add driver for CSI phy

[Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>]

Hi, Julien:

Julien Stephan <jstephan@xxxxxxxxxxxx> 於 2023年4月3日 週一 下午3:20寫道：
>
> From: Phi-bang Nguyen <pnguyen@xxxxxxxxxxxx>
>
> This is a new driver that supports the MIPI CSI CD-PHY for mediatek
> mt8365 soc
>
> Signed-off-by: Louis Kuo <louis.kuo@xxxxxxxxxxxx>
> Signed-off-by: Phi-bang Nguyen <pnguyen@xxxxxxxxxxxx>
> [Julien Stephan: use regmap]
> [Julien Stephan: use GENMASK]
> Co-developed-by: Julien Stephan <jstephan@xxxxxxxxxxxx>
> Signed-off-by: Julien Stephan <jstephan@xxxxxxxxxxxx>
> ---
>  .../bindings/phy/mediatek,csi-phy.yaml        |   9 +-
>  MAINTAINERS                                   |   1 +
>  drivers/phy/mediatek/Kconfig                  |   8 +
>  drivers/phy/mediatek/Makefile                 |   2 +
>  .../phy/mediatek/phy-mtk-mipi-csi-rx-reg.h    | 435 ++++++++++++++++++
>  drivers/phy/mediatek/phy-mtk-mipi-csi.c       | 392 ++++++++++++++++
>  6 files changed, 845 insertions(+), 2 deletions(-)
>  create mode 100644 drivers/phy/mediatek/phy-mtk-mipi-csi-rx-reg.h
>  create mode 100644 drivers/phy/mediatek/phy-mtk-mipi-csi.c
>

[snip]

> +
> +#define REGMAP_BIT(map, reg, field, val) \
> +       regmap_update_bits((map), reg, reg##_##field##_MASK, \
> +                          (val) << reg##_##field##_SHIFT)
> +

Use FIELD_PREP() macro  so you can drop the definition of SHIFT symbol.

Regards,
Chun-Kuang.