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perf/amlogic: Fix build error for x86_64 allmodconfig

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The driver misses including <linux/io.h>, which causes a compilation
error with x86_64 'allmodconfig':

drivers/perf/amlogic/meson_g12_ddr_pmu.c: In function 'dmc_g12_get_freq_quick':
drivers/perf/amlogic/meson_g12_ddr_pmu.c:135:15: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration]
  135 |         val = readl(info->pll_reg);
      |               ^~~~~
drivers/perf/amlogic/meson_g12_ddr_pmu.c: In function 'dmc_g12_counter_enable':
drivers/perf/amlogic/meson_g12_ddr_pmu.c:204:9: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration]
  204 |         writel(clock_count, info->ddr_reg[0] + DMC_MON_G12_TIMER);
      |         ^~~~~~

Add the missing header to fix the build.

Fixes: 2016e2113d ("perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiucheng Xu <jiucheng.xu@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20221122084028.572494-1-jiucheng.xu@amlogic.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Jiucheng Xu 2022-11-22 16:40:28 +08:00 committed by Will Deacon
parent fd9678d3be
commit 7299fdc1cf
1 changed files with 1 additions and 0 deletions
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drivers/perf/amlogic/meson_g12_ddr_pmu.c
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@ -4,6 +4,7 @@
*/
#include <linux/err.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>