From: Stephen Boyd <sboyd@kernel.org>
To: Jerome Brunet <jbrunet@baylibre.com>,
Kevin Hilman <khilman@baylibre.com>,
Liang Yang <liang.yang@amlogic.com>,
Michael Turquette <mturquette@baylibre.com>,
Neil Armstrong <narmstrong@baylibre.com>,
Rob Herring <robh+dt@kernel.org>,
linux-clk@vger.kernel.org
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Jianxin Pan <jianxin.pan@amlogic.com>,
Victor Wan <victor.wan@amlogic.com>,
XianWei Zhao <xianwei.zhao@amlogic.com>,
Kelvin Zhang <kelvin.zhang@amlogic.com>,
BiChao Zheng <bichao.zheng@amlogic.com>,
YongHui Yu <yonghui.yu@amlogic.com>,
linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 4/4] clk: meson: add sub MMC clock controller driver
Date: Fri, 14 Jan 2022 15:01:28 -0800 [thread overview]
Message-ID: <20220114230130.35EAAC36AE7@smtp.kernel.org> (raw)
In-Reply-To: <09ff9044-9abc-d1ad-26c1-5e6ece56d30c@amlogic.com>
Quoting Liang Yang (2022-01-13 21:14:46)
> On 2022/1/14 5:35, Stephen Boyd wrote:
> > Quoting Liang Yang (2022-01-13 03:57:45)
> >> diff --git a/drivers/clk/meson/mmc-clkc.c b/drivers/clk/meson/mmc-clkc.c
> >> new file mode 100644
> >> index 000000000000..f53977f61390
> >> --- /dev/null
> >> +++ b/drivers/clk/meson/mmc-clkc.c
> >> @@ -0,0 +1,300 @@
[..]
> >> +
> >> +static int mmc_clkc_probe(struct platform_device *pdev)
> >> +{
> >> + struct clk_hw_onecell_data *onecell_data;
> >> + struct device *dev = &pdev->dev;
> >> + struct mmc_clkc_data *data;
> >> + struct regmap *map;
> >> + struct clk_regmap *clk, *core;
> >> + struct meson_sclk_div_data *div_data;
> >> +
> >> + /*cast to drop the const in match->data*/
> >
> > Space after *, also why do we need to cast away const? The user of this
> > pointer passes it all the way down to mmc_clkc_register_clk() which
> > could take the data as const void pointer and decide to cast away const
> > there.
>
> if use 'const' here, it will report a warning:
> drivers/clk/meson/mmc-clkc.c:224:7: error: assignment discards ‘const’
> qualifier from pointer targe
> t type [-Werror=discarded-qualifiers]
>
> data = (const struct mmc_clkc_data *)of_device_get_match_data(dev);
Of course. The type declaration up above needs const added to it.
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next prev parent reply other threads:[~2022-01-14 23:01 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-13 11:57 [PATCH v9 0/4] clk: meson: add a sub EMMC clock controller support Liang Yang
2022-01-13 11:57 ` [PATCH v9 1/4] clk: meson: add one based divider support for sclk Liang Yang
2022-01-13 21:28 ` Stephen Boyd
2022-01-14 3:07 ` Liang Yang
2022-01-13 11:57 ` [PATCH v9 2/4] clk: meson: add emmc sub clock phase delay driver Liang Yang
2022-01-13 21:29 ` Stephen Boyd
2022-01-14 3:08 ` Liang Yang
2022-01-13 11:57 ` [PATCH v9 3/4] clk: meson: add DT documentation for emmc clock controller Liang Yang
2022-01-13 21:29 ` Stephen Boyd
2022-01-14 3:06 ` Liang Yang
2022-01-14 22:59 ` Stephen Boyd
2022-01-17 2:43 ` Liang Yang
2022-01-15 0:09 ` Martin Blumenstingl
2022-01-17 7:03 ` Liang Yang
2022-01-13 11:57 ` [PATCH v9 4/4] clk: meson: add sub MMC clock controller driver Liang Yang
2022-01-13 21:35 ` Stephen Boyd
2022-01-14 5:14 ` Liang Yang
2022-01-14 23:01 ` Stephen Boyd [this message]
2022-01-17 6:24 ` Liang Yang
2022-01-19 2:22 ` Stephen Boyd
2022-01-19 2:55 ` Liang Yang
-- strict thread matches above, loose matches on Subject: below --
2019-01-08 13:50 [PATCH RESEND v9 0/4] clk: meson: add a sub EMMC clock controller support Jianxin Pan
2019-01-08 13:50 ` [PATCH v9 4/4] clk: meson: add sub MMC clock controller driver Jianxin Pan
2019-01-22 9:25 ` Jerome Brunet
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