diff options
| author | Sylwester Nawrocki <sylvester.nawrocki@gmail.com> | 2013-07-24 13:23:51 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-28 16:30:16 -0700 |
| commit | ee2f769fb4a5a317b1558d0bbcccb89b8c2697a6 (patch) | |
| tree | 7211aa14ef600b762edc3b8b4b28074d9f4ca4db /arch/arm/plat-samsung | |
| parent | bb2177cd04ac81f2922cdd614f79b586556f92ad (diff) | |
ARM: S3C24XX: Add missing clkdev entries for s3c2440 UART
commit d817468c4b2892b9468e2a0c92116e38a3a61370 upstream.
This patch restores serial port operation which has been broken since
commit 60e93575476f ("serial: samsung: enable clock before clearing
pending interrupts during init")
That commit only uncovered the real issue which was missing clkdev
entries for the "uart" clocks on S3C2440. It went unnoticed so far
because return value of clk API calls were not being checked at all
in the samsung serial port driver.
This patch should be backported to at least 3.10 stable kernel, since
the serial port has not been working on s3c2440 since 3.10-rc5.
Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Cc: Chander Kashyap <chander.kashyap@linaro.org>
[on S3C2440 SoC based Mini2440 board]
Tested-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/plat-samsung')
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/clock.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h index a62753dc15b..df45d6edc98 100644 --- a/arch/arm/plat-samsung/include/plat/clock.h +++ b/arch/arm/plat-samsung/include/plat/clock.h @@ -83,6 +83,11 @@ extern struct clk clk_ext; extern struct clksrc_clk clk_epllref; extern struct clksrc_clk clk_esysclk; +/* S3C24XX UART clocks */ +extern struct clk s3c24xx_clk_uart0; +extern struct clk s3c24xx_clk_uart1; +extern struct clk s3c24xx_clk_uart2; + /* S3C64XX specific clocks */ extern struct clk clk_h2; extern struct clk clk_27m; |