kernel/linux.git/drivers/clk/bcm, branch v4.11.5

clk: bcm2835: Add leaf clock measurement support, disabled by default

2017-01-21T00:22:56+00:00

This proved incredibly useful during debugging of the DSI driver, to see if our clocks were running at rate we requested. Let's leave it here for the next person interacting with clocks on the platform (and so that hopefully we can just hook it up to debugfs some day). Signed-off-by: Eric Anholt Signed-off-by: Stephen Boyd

clk: bcm2835: Register the DSI0/DSI1 pixel clocks.

2017-01-21T00:22:55+00:00

The DSI pixel clocks are muxed from clocks generated in the analog phy by the DSI driver. In order to set them as parents, we need to do the same name lookup dance on them as we do for our root oscillator. Signed-off-by: Eric Anholt Signed-off-by: Stephen Boyd

clk: bcm2835: Don't rate change PLLs on behalf of DSI PLL dividers.

2017-01-21T00:22:54+00:00

Our core PLLs are intended to be configured once and left alone. With the SET_RATE_PARENT, asking to set the PLLD_DSI1 clock rate would change PLLD just to get closer to the requested DSI clock, thus changing PLLD_PER, the UART and ethernet PHY clock rates downstream of it, and breaking ethernet. We *do* want PLLH to change so that PLLH_AUX can be exactly the value we want, though. Thus, we need to have a per-divider policy of whether to pass rate changes up. Signed-off-by: Eric Anholt Signed-off-by: Stephen Boyd

clk: bcm: Fix 'maybe-uninitialized' warning in bcm2835_clock_choose_div_and_prate()

2016-12-12T19:25:40+00:00

best_rate is reported as potentially uninitialized by gcc. Signed-off-by: Boris Brezillon Fixes: 155e8b3b0ee3 ("clk: bcm: Support rate change propagation on bcm2835 clocks") Reported-by: Stephen Rothwell Reviewed-by: Eric Anholt Signed-off-by: Stephen Boyd

clk: bcm: Make COMMON_CLK_IPROC into a library

2016-12-09T00:29:35+00:00

The broadcom clk driver Kconfig file selects and depends on the COMMON_CLK_IPROC config for different SoC specific drivers. Let's simplify this by always selecting the COMMON_CLK_IPROC config, turning it into a set of library code. We still want to retain the SoC specific options, so we leave those in place. Since we're here we also drop COMMON_CLK dependency because that's implicitly handled by including this file in drivers/clk/Kconfig in the right place and also make CLK_BCM_KONA default to y on the architecture it exists for instead of plain default y. Cc: Florian Fainelli Cc: Ray Jui Cc: Jon Mason Signed-off-by: Stephen Boyd

clk: bcm: Allow rate change propagation to PLLH_AUX on VEC clock

2016-12-08T23:06:18+00:00

The VEC clock requires needs to be set at exactly 108MHz. Allow rate change propagation on PLLH_AUX to match this requirement wihtout impacting other IPs (PLLH is currently only used by the HDMI encoder, which cannot be enabled when the VEC encoder is enabled). Signed-off-by: Boris Brezillon Reviewed-by: Eric Anholt Signed-off-by: Stephen Boyd

clk: bcm: Support rate change propagation on bcm2835 clocks

2016-12-08T23:06:08+00:00

Some peripheral clocks, like the VEC (Video EnCoder) clock need to be set to a precise rate (in our case 108MHz). With the current implementation, where peripheral clocks are not allowed to forward rate change requests to their parents, it is impossible to match this requirement unless the bootloader has configured things correctly, or a specific rate has been assigned through the DT (with the assigned-clk-rates property). Add a new field to struct bcm2835_clock_data to specify which parent clocks accept rate change propagation, and support set rate propagation in bcm2835_clock_determine_rate(). Signed-off-by: Boris Brezillon Reviewed-by: Eric Anholt Signed-off-by: Stephen Boyd

clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clk

2016-12-08T22:55:04+00:00

bcm2835_pll_divider_off() is resetting the divider field in the A2W reg to zero when disabling the clock. Make sure we preserve this value by reading the previous a2w_reg value first and ORing the result with A2W_PLL_CHANNEL_DISABLE. Signed-off-by: Boris Brezillon Fixes: 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks") Cc: Reviewed-by: Eric Anholt Signed-off-by: Stephen Boyd

Merge branch 'clk-fixes' into clk-next

2016-11-23T22:31:45+00:00

* clk-fixes: clk: bcm: Fix unmet Kconfig dependencies for CLK_BCM_63XX clk: sunxi-ng: enable so-said LDOs for A33 SoC's pll-mipi clock clk: sunxi-ng: sun6i-a31: Enable PLL-MIPI LDOs when ungating it

clk: bcm: Fix unmet Kconfig dependencies for CLK_BCM_63XX

2016-11-23T22:31:11+00:00

With commit f4e871509959 ("clk: iproc: Make clocks visible options"), COMMON_CLK_IPROC gained a dependency on ARCH_BCM_IPROC, yet CLK_BCM_63XX also selects that option, this causes the following Kconfig warning: warning: (CLK_BCM_63XX) selects COMMON_CLK_IPROC which has unmet direct dependencies ((ARCH_BCM_IPROC || COMPILE_TEST) && COMMON_CLK) Fix this by adding proper depends for COMMON_CLK_IPROC Fixes: f4e871509959 ("clk: iproc: Make clocks visible options") Signed-off-by: Florian Fainelli Reviewed-by: Ray Jui [sboyd@codeaurora.org: Drop default part as it's redundant] Signed-off-by: Stephen Boyd