linux

Commit Graph

Author	SHA1	Message	Date
Emilio López	862b728387	clk: sunxi: factors: automatic reparenting support This commit implements .determine_rate, so that our factor clocks can be reparented when needed. Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>	2014-05-05 15:55:56 -07:00
Emilio López	40a5dcba4e	clk: sunxi: register factors clocks behind composite This commit reworks factors clock registration to be done behind a composite clock. This allows us to additionally add a gate, mux or divisors, as it will be needed by some future PLLs. Signed-off-by: Emilio López <emilio@elopez.com.ar> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Mike Turquette <mturquette@linaro.org>	2013-12-28 17:07:42 -03:00
Emilio López	12ef06afb3	clk: sunxi: factors: clear variables before using them Random bits may get into our factors if we don't clear n, k, m and p. Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>	2013-11-10 11:39:51 +01:00
Emilio López	c518e84c76	clk: sunxi: factors: fix off-by-one masks The previous code would generate one bit too long masks, and was needlessly complicated. This patch replaces it by simpler code that can generate the masks correctly. Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>	2013-11-10 11:39:46 +01:00
Emilio López	e874a66977	clk: arm: sunxi: Add a new clock driver for sunxi SOCs This commit implements the base CPU clocks for sunxi devices. It has been tested using a slightly modified cpufreq driver from the linux-sunxi 3.0 tree. Additionally, document the new bindings introduced by this patch. Idling: / # cat /sys/kernel/debug/clk/clk_summary clock enable_cnt prepare_cnt rate --------------------------------------------------------------------- osc32k 0 0 32768 osc24M_fixed 0 0 24000000 osc24M 0 0 24000000 apb1_mux 0 0 24000000 apb1 0 0 24000000 pll1 0 0 60000000 cpu 0 0 60000000 axi 0 0 60000000 ahb 0 0 60000000 apb0 0 0 30000000 dummy 0 0 0 After "yes >/dev/null &": / # cat /sys/kernel/debug/clk/clk_summary clock enable_cnt prepare_cnt rate --------------------------------------------------------------------- osc32k 0 0 32768 osc24M_fixed 0 0 24000000 osc24M 0 0 24000000 apb1_mux 0 0 24000000 apb1 0 0 24000000 pll1 0 0 1008000000 cpu 0 0 1008000000 axi 0 0 336000000 ahb 0 0 168000000 apb0 0 0 84000000 dummy 0 0 0 Signed-off-by: Emilio López <emilio@elopez.com.ar> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>	2013-03-27 08:35:34 -07:00

5 Commits