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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/perf to use .remove(), with
the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <[email protected]>
Link: https://lore.kernel.org/r/33dbadf246eb323edd9e09ac744111216c167a55.1702648124.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Will Deacon <[email protected]>
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Add missing MODULE_DEVICE_TABLE macro to let this driver to be
automatically loaded as module.
Signed-off-by: Marek Szyprowski <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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Commit "perf/amlogic: resolve conflict between canvas & pmu"
changed the base address.
Fixes: 2016e2113d35 ("perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver")
Signed-off-by: Marc Gonzalez <[email protected]>
Acked-by: Will Deacon <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Neil Armstrong <[email protected]>
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According to the "Abaci Robot":
| ./drivers/perf/amlogic/meson_g12_ddr_pmu.c:15 linux/version.h not needed.
| ./drivers/perf/amlogic/meson_ddr_pmu_core.c: 19 linux/version.h not needed.
So drop the unnecessary #include directives.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3280
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3282
Reported-by: Abaci Robot <[email protected]>
Signed-off-by: Jiapeng Chong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
[will: Squashed patches together, filled out commit message a bit more]
Signed-off-by: Will Deacon <[email protected]>
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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: 2016e2113d35 ("perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver")
Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Jiucheng Xu <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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Add support for Amlogic Meson G12 Series SOC - DDR bandwidth PMU driver
framework and interfaces. The PMU can not only monitor the total DDR
bandwidth, but also individual IP module bandwidth.
Signed-off-by: Jiucheng Xu <[email protected]>
Tested-by: Chris Healy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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