On Sat, Oct 17, 2015 at 09:27:38PM +0300, Vladimir Zapolskiy wrote:
> If common clock framework is configured, the driver generates a warning,
> which is fixed by this change:
>
> root@devkit3250:~# cat /dev/input/touchscreen0
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 720 at drivers/clk/clk.c:727
> clk_core_enable+0x2c/0xa4()
> Modules linked in: sc16is7xx snd_soc_uda1380
> CPU: 0 PID: 720 Comm: cat Not tainted 4.3.0-rc2+ #199
> Hardware name: LPC32XX SoC (Flattened Device Tree)
> Backtrace:
> [<>] (dump_backtrace) from [<>] (show_stack+0x18/0x1c)
> [<>] (show_stack) from [<>] (dump_stack+0x20/0x28)
> [<>] (dump_stack) from [<>] (warn_slowpath_common+0x90/0xb8)
> [<>] (warn_slowpath_common) from [<>] (warn_slowpath_null+0x24/0x2c)
> [<>] (warn_slowpath_null) from [<>] (clk_core_enable+0x2c/0xa4)
> [<>] (clk_core_enable) from [<>] (clk_enable+0x24/0x38)
> [<>] (clk_enable) from [<>] (lpc32xx_setup_tsc+0x18/0xa0)
> [<>] (lpc32xx_setup_tsc) from [<>] (lpc32xx_ts_open+0x14/0x1c)
> [<>] (lpc32xx_ts_open) from [<>] (input_open_device+0x74/0xb0)
> [<>] (input_open_device) from [<>] (evdev_open+0x110/0x16c)
> [<>] (evdev_open) from [<>] (chrdev_open+0x1b4/0x1dc)
> [<>] (chrdev_open) from [<>] (do_dentry_open+0x1dc/0x2f4)
> [<>] (do_dentry_open) from [<>] (vfs_open+0x6c/0x70)
> [<>] (vfs_open) from [<>] (path_openat+0xb4c/0xddc)
> [<>] (path_openat) from [<>] (do_filp_open+0x40/0x8c)
> [<>] (do_filp_open) from [<>] (do_sys_open+0x124/0x1c4)
> [<>] (do_sys_open) from [<>] (SyS_open+0x2c/0x30)
> [<>] (SyS_open) from [<>] (ret_fast_syscall+0x0/0x38)
>
> Signed-off-by: Vladimir Zapolskiy <[email protected]>
Applied, thank you.
> ---
> drivers/input/touchscreen/lpc32xx_ts.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/input/touchscreen/lpc32xx_ts.c
> b/drivers/input/touchscreen/lpc32xx_ts.c
> index 24d704c..7fbb3b0 100644
> --- a/drivers/input/touchscreen/lpc32xx_ts.c
> +++ b/drivers/input/touchscreen/lpc32xx_ts.c
> @@ -139,14 +139,14 @@ static void lpc32xx_stop_tsc(struct lpc32xx_tsc *tsc)
> tsc_readl(tsc, LPC32XX_TSC_CON) &
> ~LPC32XX_TSC_ADCCON_AUTO_EN);
>
> - clk_disable(tsc->clk);
> + clk_disable_unprepare(tsc->clk);
> }
>
> static void lpc32xx_setup_tsc(struct lpc32xx_tsc *tsc)
> {
> u32 tmp;
>
> - clk_enable(tsc->clk);
> + clk_prepare_enable(tsc->clk);
>
> tmp = tsc_readl(tsc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_POWER_UP;
>
> --
> 2.1.4
>
--
Dmitry
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