clk: mediatek: mt8135: Fix an error handling path in clk_mt8135_apmixed_probe()

If an error occurs after mtk_alloc_clk_data(), mtk_free_clk_data() should
be called, as already done in the remove function.

Fixes: 54b7026f011e ("clk: mediatek: mt8135-apmixedsys: Convert to platform_driver and module")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/6cd6af61e5a91598068227f1f68cfcfde1507453.1704615011.git.christophe.jaillet@wanadoo.fr
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: mediatek: Convert all remaining drivers to platform_driver's .remove_new()

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 (mostly) ignored
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.

Trivially convert all mediatek clk drivers from always returning zero in
the remove callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230430190233.878921-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: mediatek: mt8135-apmixedsys: Convert to platform_driver and module

Convert apmixedsys clocks to be a platform driver; while at it, also
add necessary error handling to the probe function, add a remove
callback and provide a MODULE_DESCRIPTION().

This driver is now compatible with an eventual module build.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230306140543.1813621-53-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

clk: mediatek: mt8135: Move apmixedsys to its own file

In preparation for migrating mt8135 clocks to the common simple
probe mechanism, move the apmixedsys clocks to a different file.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230306140543.1813621-51-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>