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authorLinus Torvalds <torvalds@linux-foundation.org>2024-11-22 17:02:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-11-22 17:02:25 -0800
commit9f3a2ba62c7226a6604b8aaeb92b5ff906fa4e6b (patch)
tree043cabdf7e9f3c86c68c33c351f8a3a899515746 /drivers/clk/meson/clk-pll.c
parent2fb7eb3d7e8c5c0375c726c7d5c443e6f7e53741 (diff)
parent21a5352dc702d8e6dc874e0eb6ba6d81291a788a (diff)
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd: "The core framework gained a clk provider helper, a clk consumer helper, and some unit tests for the assigned clk rates feature in DeviceTree. On the vendor driver side, we gained a whole pile of SoC driver support detailed below. The majority in the diffstat is Qualcomm, but there's also quite a few Samsung and Mediatek clk driver additions in here as well. The top vendors is quite common, but the sheer amount of new drivers is uncommon, so I'm anticipating a larger number of fixes for clk drivers this cycle. Core: - devm_clk_bulk_get_all_enabled() to return number of clks acquired - devm_clk_hw_register_gate_parent_hw() helper to modernize drivers - KUnit tests for clk-assigned-rates{,-u64} New Drivers: - Marvell PXA1908 SoC clks - Mobileye EyeQ5, EyeQ6L and EyeQ6H clk driver - TWL6030 clk driver - Nuvoton Arbel BMC NPCM8XX SoC clks - MediaTek MT6735 SoC clks - MediaTek MT7620, MT7628 and MT7688 MMC clks - Add a driver for gated fixed rate clocks - Global clock controllers for Qualcomm QCS8300 and IPQ5424 SoCs - Camera, display and video clock controllers for Qualcomm SA8775P SoCs - Global, display, GPU, TCSR, and RPMh clock controllers for Qualcomm SAR2130P - Global, camera, display, GPU, and video clock controllers for Qualcomm SM8475 SoCs - RTC power domain and Battery Backup Function (VBATTB) clock support for the Renesas RZ/G3S SoC - Qualcomm IPQ9574 alpha PLLs - Support for i.MX91 CCM in the i.MX93 driver - Microchip LAN969X SoC clks - Cortex-A55 core clocks and Interrupt Control Unit (ICU) clock and reset on Renesas RZ/V2H(P) - Samsung ExynosAutov920 clk drivers for PERIC1, MISC, HSI0 and HSI1 - Samsung Exynos8895 clk drivers for FSYS0/1, PERIC0/1, PERIS and TOP Updates: - Convert more clk bindings to YAML - Various clk driver cleanups: NULL checks, add const, etc. - Remove END/NUM #defines that count number of clks in various binding headers - Continue moving reset drivers to drivers/reset via auxiliary bus" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (162 commits) clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access clk: Fix invalid execution of clk_set_rate clk: clk-loongson2: Fix memory corruption bug in struct loongson2_clk_provider clk: lan966x: make it selectable for ARCH_LAN969X clk: eyeq: add EyeQ6H west fixed factor clocks clk: eyeq: add EyeQ6H central fixed factor clocks clk: eyeq: add EyeQ5 fixed factor clocks clk: eyeq: add fixed factor clocks infrastructure clk: eyeq: require clock index with phandle in all cases clk: fixed-factor: add clk_hw_register_fixed_factor_index() function dt-bindings: clock: eyeq: add more Mobileye EyeQ5/EyeQ6H clocks dt-bindings: soc: mobileye: set `#clock-cells = <1>` for all compatibles clk: clk-axi-clkgen: make sure to enable the AXI bus clock dt-bindings: clock: axi-clkgen: include AXI clk clk: mmp: Add Marvell PXA1908 MPMU driver clk: mmp: Add Marvell PXA1908 APMU driver clk: mmp: Add Marvell PXA1908 APBCP driver clk: mmp: Add Marvell PXA1908 APBC driver dt-bindings: clock: Add Marvell PXA1908 clock bindings clk: mmp: Switch to use struct u32_fract instead of custom one ...
Diffstat (limited to 'drivers/clk/meson/clk-pll.c')
-rw-r--r--drivers/clk/meson/clk-pll.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c
index bc570a2ff3a3..89f0f04a16ab 100644
--- a/drivers/clk/meson/clk-pll.c
+++ b/drivers/clk/meson/clk-pll.c
@@ -57,12 +57,13 @@ static unsigned long __pll_params_to_rate(unsigned long parent_rate,
struct meson_clk_pll_data *pll)
{
u64 rate = (u64)parent_rate * m;
+ unsigned int frac_max = pll->frac_max ? pll->frac_max :
+ (1 << pll->frac.width);
if (frac && MESON_PARM_APPLICABLE(&pll->frac)) {
u64 frac_rate = (u64)parent_rate * frac;
- rate += DIV_ROUND_UP_ULL(frac_rate,
- (1 << pll->frac.width));
+ rate += DIV_ROUND_UP_ULL(frac_rate, frac_max);
}
return DIV_ROUND_UP_ULL(rate, n);
@@ -100,7 +101,8 @@ static unsigned int __pll_params_with_frac(unsigned long rate,
unsigned int n,
struct meson_clk_pll_data *pll)
{
- unsigned int frac_max = (1 << pll->frac.width);
+ unsigned int frac_max = pll->frac_max ? pll->frac_max :
+ (1 << pll->frac.width);
u64 val = (u64)rate * n;
/* Bail out if we are already over the requested rate */