Commit graph

7 commits

Author SHA1 Message Date
Uwe Kleine-König
a0386bba70
spi: make remove callback a void function
The value returned by an spi driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Claudius Heine <ch@denx.de>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC
Acked-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220123175201.34839-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-09 13:00:45 +00:00
Liam Beguin
284c537a8a clk: lmk04832: drop redundant fallthrough statements
When the body of a case statement is empty, it is well understood that
it is intentional and explicit fallthrough statements are not required.
Drop them.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Link: https://lore.kernel.org/r/20210708211645.3621902-1-liambeguin@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-07-27 11:52:30 -07:00
Colin Ian King
2cdee50eda clk: lmk04832: Fix spelling mistakes in dev_err messages and comments
There are handful of spelling mistakes in two dev_err error messages
and comments. Fix them.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210629102956.17901-1-colin.king@canonical.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-30 11:19:15 -07:00
Wang Hai
b424f73b6c clk: lmk04832: fix return value check in lmk04832_probe()
In case of error, the function devm_kzalloc() and devm_kcalloc() return
NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Fixes: 3bc61cfd6f ("clk: add support for the lmk04832")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Link: https://lore.kernel.org/r/20210630020322.2555946-1-wanghai38@huawei.com
Reviewed-by: Liam Beguin <lvb@xiphos.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-30 11:18:25 -07:00
Stephen Boyd
bf68fdfdec clk: lmk04832: Use of match table
Presumably we want to use this match table so add a module device table
and set the driver match pointer appropriately.

Reported-by: kernel test robot <lkp@intel.com>
Cc: Liam Beguin <lvb@xiphos.com>
Fixes: 3bc61cfd6f ("clk: add support for the lmk04832")
Link: https://lore.kernel.org/r/20210629060751.3119453-2-sboyd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-28 23:08:52 -07:00
Liam Beguin
6181baa177 clk: lmk04832: add support for digital delay
The digital delay allows outputs to be delayed from 8 to 1023 VCO
cycles. The delay step can be as small as half the period of the clock
distribution path. For example, a 3.2-GHz VCO frequency results in
156.25-ps steps.  The digital delay value takes effect on the clock
output phase after a SYNC event.

This is required to support JESD204B subclass 1.

Signed-off-by: Liam Beguin <lvb@xiphos.com>
Link: https://lore.kernel.org/r/20210423004057.283926-3-liambeguin@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-27 18:02:50 -07:00
Liam Beguin
3bc61cfd6f clk: add support for the lmk04832
The LMK04832 is an ultra-high performance clock conditioner with JEDEC
JESD204B support and is also pin compatible with the LMK0482x family of
devices.

Signed-off-by: Liam Beguin <lvb@xiphos.com>
Link: https://lore.kernel.org/r/20210423004057.283926-2-liambeguin@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-27 18:02:50 -07:00