kernel/git/stable/linux.git/arch/arm/mach-mmp/time.c, branch master

ARM: mmp: remove device definitions

2023-01-16T08:26:05+00:00

Since all board support is now gone, a lot of code in the platform is no longer called and can be removed as well. The remaining parts are: * The interrupt numbers for pxa910 are still needed for the power management support. * The 'mfp' device is still statically initialized from platform code, though this could be moved into the pinctrl code * The CPU identification code is used for the cpu_is_mmp*() macros. Signed-off-by: Arnd Bergmann

ARM: mmp: fix timer_read delay

2022-12-04T12:11:40+00:00

timer_read() was using an empty 100-iteration loop to wait for the TMR_CVWR register to capture the latest timer counter value. The delay wasn't long enough. This resulted in CPU idle time being extremely underreported on PXA168 with CONFIG_NO_HZ_IDLE=y. Switch to the approach used in the vendor kernel, which implements the capture delay by reading TMR_CVWR a few times instead. Fixes: 49cbe78637eb ("[ARM] pxa: add base support for Marvell's PXA168 processor line") Signed-off-by: Doug Brown Link: https://lore.kernel.org/r/20221204005117.53452-3-doug@schmorgal.com Signed-off-by: Arnd Bergmann

ARM: mmp: Remove legacy clk code

2020-05-13T03:28:03+00:00

Remove all the legacy clk code that supports a non-common clk framework implementation of 'struct clk' in mach-mmp. This code doesn't look to be compiled anymore given that the MMP is fully supported in the multi-platform config via ARCH_MULTIPLATFORM as of commit 377524dc4d77 ("ARM: mmp: move into ARCH_MULTIPLATFORM"). The ARCH_MULTIPLATFORM config selects COMMON_CLK and therefore the Makefile rule can never actually compile the code in these files. Cc: Lubomir Rintel Cc: Russell King Cc: Cc: Arnd Bergmann Signed-off-by: Stephen Boyd Link: https://lkml.kernel.org/r/20200409064416.83340-9-sboyd@kernel.org Reviewed-by: Arnd Bergmann [sboyd@kernel.org: Squash in a clock.h include removal found by Stephen Rothwell ]

ARM: mmp: replace setup_irq() by request_irq()

2020-03-27T13:11:50+00:00

request_irq() is preferred over setup_irq(). Invocations of setup_irq() occur after memory allocators are ready. Per tglx[1], setup_irq() existed in olden days when allocators were not ready by the time early interrupts were initialized. Hence replace setup_irq() by request_irq(). [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos Link: https://lore.kernel.org/r/20200327124437.4239-1-afzal.mohd.ma@gmail.com Signed-off-by: afzal mohammed Acked-by: Lubomir Rintel Tested-by: Lubomir Rintel Signed-off-by: Arnd Bergmann

ARM: mmp: do not divide the clock rate

2020-01-06T17:18:50+00:00

This was done because the clock driver returned the wrong rate, which is fixed in "clk: mmp2: Fix the order of timer mux parents" patch. Link: https://lore.kernel.org/r/20191218190454.420358-2-lkundrak@v3.sk Signed-off-by: Lubomir Rintel Signed-off-by: Olof Johansson

ARM: mmp: move cputype.h to include/linux/soc/

2019-10-17T14:36:12+00:00

Let's move cputype.h away from mach-mmp/ so that the drivers outside that directory are able to tell the precise silicon revision. The MMP3 USB OTG PHY driver needs this. Signed-off-by: Lubomir Rintel

ARM: mmp: add support for MMP3 SoC

2019-10-17T14:36:11+00:00

Similar to MMP2, which this patch is based on. Known differencies from MMP2 are: * Two PJ4B cores instead of one PJ4 * Tauros 3 L2 cache controller instead of Tauros 2 * A GIC interrupt controller optionally used instead of the MMP one * A TWD local timer * Different USB2 PHY * A USB3 SS controller * More interrupt muxes Hard to tell what else is different, because documentation is not available. Signed-off-by: Lubomir Rintel

ARM: mmp: DT: convert timer driver to use TIMER_OF_DECLARE

2019-10-17T14:36:11+00:00

This makes things just a tiny bit simpler. Signed-off-by: Lubomir Rintel

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

ARM: mmp: fix timer_init calls

2018-12-12T21:54:40+00:00

The change to passing the timer frequency as a function argument was a good idea, but caused a build failure for one user that was missed in the update: arch/arm/mach-mmp/time.c: In function 'mmp_dt_init_timer': arch/arm/mach-mmp/time.c:242:2: error: implicit declaration of function 'timer_init'; did you mean 'hrtimer_init'? [-Werror=implicit-function-declaration] Change that as well to fix the build error, and rename the function to put it into a proper namespace and make it clearer what is actually going on. I saw that the high 6500000 HZ frequency was previously only set with CONFIG_MMP2, but is now also used with MMP (pxa910), so I'm changing that back here. Please make sure that the frequencies are all correct now. Fixes: f36797ee4380 ("ARM: mmp/mmp2: dt: enable the clock") Signed-off-by: Arnd Bergmann Signed-off-by: Olof Johansson