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path: root/drivers/clk/clk-stm32mp1.c (follow)
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2019-04-29clk: stm32mp1: Add ddrperfm clockGabriel Fernandez1-0/+3
Add ddrperfm clock for DDR Performance Monitor driver Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: fix bit width of hse_rtc dividerGabriel Fernandez1-1/+1
Fix the bit width of the hse rtc divider because it's off by one. Fixes: 2c87c9d33117 ("clk: stm32mp1: add RTC clock") Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: remove unnecessary CLK_DIVIDER_ALLOW_ZERO flagGabriel Fernandez1-3/+2
The divisor of ethptp_k and ck_hse_rtc clocks is: 'value register plus one'. Then CLK_DIVIDER_ALLOW_ZERO flag has no effect and is useless here. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: fix HSI divider flagGabriel Fernandez1-2/+2
The divider of HSI (clk-hsi-div) is power of two divider. Fixes: 9bee94e7b7da ("clk: stm32mp1: Introduce STM32MP1 clock driver") Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: fix mcu divider tableGabriel Fernandez1-1/+1
index 8: ck_mcu is divided by 256 (not 512) Fixes: e51d297e9a92 ("clk: stm32mp1: add Sub System clocks") Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: set ck_csi as critical clockGabriel Fernandez1-1/+3
ck_csi is used for IO compensation so it should be considered as "always-on" and kept on. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: add CLK_SET_RATE_NO_REPARENT to Kernel clocksGabriel Fernandez1-5/+7
STM32MP1 clock IP offers lots of Kernel clocks that are shared by multiple IP's at the same time. Then boot loader applies a clock tree that allows to use all IP's at same time and with the maximum of performance. Not change parents on a change rate on kernel clocks ensures the integrity of the system. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21clk: stm32mp1: parent clocks updateGabriel Fernandez1-5/+5
Fixes parent clock for axi, fdcan, sai and adc12 clocks. Fixes: e51d297e9a92 ("clk: stm32mp1: add Sub System clocks") Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-11-29clk: stm32mp1: drop pointless static qualifier in stm32_register_hw_clk()YueHaibing1-1/+1
There is no need to have the 'struct clk_hw **hws' variable static since new value always be assigned before use it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-08-30clk: Convert to using %pOFn instead of device_node.nameRob Herring1-1/+1
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-omap@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-09Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds1-9/+3
Pull clk updates from Stephen Boyd: "This time we have a good set of changes to the core framework that do some general cleanups, but nothing too major. The majority of the diff goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for Actions Semi so it takes up some lines to add all the different types, and the Qualcomm diff is there because we add support for two SoCs and it's quite a bit of data. Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And then the long tail of driver updates for various fixes and stuff follows after that. Core: - debugfs cleanups removing error checking and an unused provider API - Removal of a clk init typedef that isn't used - Usage of match_string() to simplify parent string name matching - OF clk helpers moved to their own file (linux/of_clk.h) - Make clk warnings more readable across kernel versions New Drivers: - Qualcomm SDM845 GCC and Video clk controllers - Qualcomm MSM8998 GCC - Actions Semi S900 SoC support - Nuvoton npcm750 microcontroller clks - Amlogic axg AO clock controller Removed Drivers: - Deprecated Rockchip clk-gate driver Updates: - debugfs functions stopped checking return values - Support for the MSIOF module clocks on Rensas R-Car M3-N - Support for the new Rensas RZ/G1C and R-Car E3 SoCs - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs - Berlin and Amlogic SPDX tagging - Usage of of_clk_get_parent_count() in more places - Proper implementation of the CDEV1/2 clocks on Tegra20 - Allwinner H6 PRCM clock support and R40 EMAC support - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet - Round closest support for meson's mpll driver - Support for meson8b nand clocks and gxbb video decoder clocks - Mediatek mali clks - STM32MP1 fixes - Uniphier LD11/LD20 stream demux system clock" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits) clk: qcom: Export clk_fabia_pll_configure() clk: bcm: Update and add Stingray clock entries dt-bindings: clk: Update Stingray binding doc clk-si544: Properly round requested frequency to nearest match clk: ingenic: jz4770: Add 150us delay after enabling VPU clock clk: ingenic: jz4770: Enable power of AHB1 bus after ungating VPU clock clk: ingenic: jz4770: Modify C1CLK clock to disable CPU clock stop on idle clk: ingenic: jz4770: Change OTG from custom to standard gated clock clk: ingenic: Support specifying "wait for clock stable" delay clk: ingenic: Add support for clocks whose gate bit is inverted clk: use match_string() helper clk: bcm2835: use match_string() helper clk: Return void from debug_init op clk: remove clk_debugfs_add_file() clk: tegra: no need to check return value of debugfs_create functions clk: davinci: no need to check return value of debugfs_create functions clk: bcm2835: no need to check return value of debugfs_create functions clk: no need to check return value of debugfs_create functions clk: imx6: add EPIT clock support clk: mvebu: use correct bit for 98DX3236 NAND ...
2018-06-06treewide: Use struct_size() for kmalloc()-familyKees Cook1-3/+2
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = kmalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL); This patch makes the changes for kmalloc()-family (and kvmalloc()-family) uses. It was done via automatic conversion with manual review for the "CHECKME" non-standard cases noted below, using the following Coccinelle script: // pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len * // sizeof *pkey_cache->table, GFP_KERNEL); @@ identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc"; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP) + alloc(struct_size(VAR, ELEMENT, COUNT), GFP) // mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL); @@ identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc"; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP) + alloc(struct_size(VAR, ELEMENT, COUNT), GFP) // Same pattern, but can't trivially locate the trailing element name, // or variable name. @@ identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc"; expression GFP; expression SOMETHING, COUNT, ELEMENT; @@ - alloc(sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP) + alloc(CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-15clk: stm32mp1: Fix a memory leak in 'clk_stm32_register_gate_ops()'Christophe JAILLET1-8/+1
We allocate some memory which is neither used, nor referenced by anything. So axe it. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15clk: stm32mp1: Add CLK_IGNORE_UNUSED to ck_sys_dbg clockGabriel Fernandez1-1/+2
Don't disable the dbg clock if was set by bootloader. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06clk: stm32mp1: remove ck_apb_dbg clockGabriel Fernandez1-4/+0
It's recommended to use only clk_sys_dbg clock instead to activate debug IP. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06clk: stm32mp1: set stgen_k clock as criticalGabriel Fernandez1-2/+1
stgen_k should be declared as critical to avoid blocking console when ck_hsi is not used. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06clk: stm32mp1: add missing tzc2 clockGabriel Fernandez1-3/+6
This patch adds tzc2 clock and rename tzc clock into tzc1 Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06clk: stm32mp1: fix SAI3 & SAI4 clocksGabriel Fernandez1-2/+2
fix bad copy / paste. SAI3 & SAI4 used gate of SAI2 instead SAI3 & SAI4 Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06clk: stm32mp1: remove unused dfsdm_src[] constGabriel Fernandez1-4/+0
This patch remove unused constant. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06clk: stm32mp1: add missing staticGabriel Fernandez1-16/+14
Add missing static for const parent names and clock ops. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-11clk: stm32mp1: add Debug clocksGabriel Fernandez1-0/+22
RCC manages clock for debug and trace. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add MCO clocksGabriel Fernandez1-0/+20
Two micro-controller clock output (MCO) pins are available: MCO1 and MCO2. For each output, it is possible to select a clock source. The selected clock can be divided thanks to configurable prescaler. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add RTC clockGabriel Fernandez1-0/+15
This patch adds the RTC clock. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add Peripheral & Kernel ClocksGabriel Fernandez1-27/+820
Each peripheral requires a bus interface clock. Some peripherals need also a dedicated clock for their communication interface, this clock is generally asynchronous with respect to the bus interface clock (peripheral clock), and is named kernel clock. For each IP, Peripheral clock and Kernel are generally gating with same gate. Also, Kernel clocks can share a same multiplexer. This patch introduces a mechanism to manage a gate with several clocks and to manage a shared multiplexer (mgate and mmux). Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add Kernel timersGabriel Fernandez1-0/+185
This patch adds Kernel timers. This patch adds timers kernel clock. Timers are gather into two groups corresponding to the APB bus they are attached to. Each group has its own prescaler, managed in this patch. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add Sub System clocksGabriel Fernandez1-0/+85
The RCC handles three sub-system clocks: ck_mpuss, ck_axiss and ck_mcuss. This patch adds also some MUX system and several prescalers. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add Post-dividers for PLLGabriel Fernandez1-0/+221
Each PLL has 3 outputs with post-dividers. pll1_p is dedicated for Cortex-A7 pll1_q is not connected pll1_r is not connected pll2_p is dedicated for AXI pll2_q is dedicated for GPU pll2_r is dedicated for DDR pll3_p is dedicated for mcu pll3_q is for Peripheral Kernel Clock pll3_r is for Peripheral Kernel Clock pll4_p is for Peripheral Kernel Clock pll4_q is for Peripheral Kernel Clock pll4_r is for Peripheral Kernel Clock Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add PLL clocksGabriel Fernandez1-0/+209
STMP32MP1 has 4 PLLs. PLL supports integer and fractional mode. Each PLL has 3 output dividers (p, q, r) Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add Source Clocks for PLLsGabriel Fernandez1-0/+60
This patch adds source clocks for PLLs This patch also introduces MUX clock API. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: add MP1 gate for hse/hsi/csi oscillatorsGabriel Fernandez1-0/+143
MP1 Gate is a gate with a set and a clear register. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11clk: stm32mp1: Introduce STM32MP1 clock driverGabriel Fernandez1-0/+364
This patch introduces the mechanism to probe stm32mp1 driver. It also defines registers definition. This patch also introduces the generic mechanism to register a clock (a simple gate, divider and fixed factor). All clocks will be defined in one table. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
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