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path: root/drivers/clk/mediatek
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2015-07-07clk: mediatek: mt8173: Fix enabling of critical clocksSascha Hauer1-5/+21
On the MT8173 the clocks are provided by different units. To enable the critical clocks we must be sure that all parent clocks are already registered, otherwise the parents of the critical clocks end up being unused and get disabled later. To find a place where all parents are registered we try each time after we've registered some clocks if all known providers are present now and only then we enable the critical clocks Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: James Liao <jamesjj.liao@mediatek.com> [sboyd@codeaurora.org: Marked function and data __init] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-05clk: mediatek: Fix apmixedsys clock registrationJames Liao2-2/+2
The size of clk_data should be the same as CLK_APMIXED_NR_CLK instead of ARRAY_SIZE(plls). CLK_APMIXED_* is numbered from 1, so CLK_APMIXED_NR_CLK will be greater than ARRAY_SIZE(plls). Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-20clk: mediatek: Initialize clk_init_dataRicky Liang2-2/+2
The variable init (struct clk_init_data) is allocated on the stack. We weren't initializing the .flags field, so it contains random junk, which can cause all kinds of interesting issues when the flags are parsed by clk_register. Signed-off-by: Ricky Liang <jcliang@chromium.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-06clk: mediatek: Add basic clocks for Mediatek MT8173.James Liao2-0/+831
This patch adds basic clocks for MT8173, including TOPCKGEN, PLLs, INFRA and PERI clocks. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-06clk: mediatek: Add basic clocks for Mediatek MT8135.James Liao2-0/+645
This patch adds basic clocks for MT8135, including TOPCKGEN, PLLs, INFRA and PERI clocks. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-06clk: mediatek: Add reset controller supportSascha Hauer3-0/+108
The pericfg and infracfg units also provide reset lines to several other SoC internal units. This adds a function which can be called from the pericfg and infracfg initialization functions which will register the reset controller using reset_controller_register. The reset controller will provide support for resetting the units connected to the pericfg and infracfg controller. The units resetted by this controller can use the standard reset device tree binding to gain access to the reset lines. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-06clk: mediatek: Add initial common clock support for Mediatek SoCs.James Liao6-0/+898
This patch adds common clock support for Mediatek SoCs, including plls, muxes and clock gates. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> [sboyd@codeaurora.org: Squelch checkpatch warning in clk-mtk.h] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>