diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-17 10:48:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-17 10:48:09 +0200 |
| commit | b8979c6b4d0d1b36e94f5bc483fd86e38107e554 (patch) | |
| tree | 4b2081e6fae1a40a57cf36c5b130b02c55c666f3 /drivers/memory/emif.c | |
| parent | 7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf (diff) | |
| parent | b62800736f61521547d50fd8cc332cf9b74cbaff (diff) | |
Merge tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"The driver updates seem larger this time around, with changes is many
of the SoC specific drivers, both the custom drivers/soc ones and the
closely related subsystems (memory, bus, firmware, reset, ...).
The at91 platform gains support for sam9x7 chips in the soc and power
management code. This is the latest variant of one of the oldest still
supported SoC families, using the ARM9 (ARMv5) core.
As usual, the qualcomm snapdragon platform gets a ton of updates in
many of their drivers to add more features and additional SoC support.
Most of these are somewhat firmware related as the platform has a
number of firmware based interfaces to the kernel. A notable addition
here is the inclusion of trace events to two of these drivers.
Herve Codina and Christophe Leroy are now sending updates for
drivers/soc/fsl/ code through the SoC tree, this contains both PowerPC
and Arm specific platforms and has previously been problematic to
maintain. The first update here contains support for newer PowerPC
variants and some cleanups.
The turris mox firmware driver has a number of updates, mostly
cleanups.
The Arm SCMI firmware driver gets a major rework to modularize the
existing code into separately loadable drivers for the various
transports, the addition of custom NXP i.MX9 interfaces and a number
of smaller updates.
The Arm FF-A firmware driver gets a feature update to support the v1.2
version of the specification.
The reset controller drivers have some smaller cleanups and a newly
added driver for the Intel/Mobileye EyeQ5/EyeQ6 MIPS SoCs.
The memory controller drivers get some cleanups and refactoring for
Tegra, TI, Freescale/NXP and a couple more platforms.
Finally there are lots of minor updates to firmware (raspberry pi,
tegra, imx), bus (sunxi, omap, tegra) and soc (rockchips, tegra,
amlogic, mediatek) drivers and their DT bindings"
* tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (212 commits)
firmware: imx: remove duplicate scmi_imx_misc_ctrl_get()
platform: cznic: turris-omnia-mcu: Fix error check in omnia_mcu_register_trng()
bus: sunxi-rsb: Simplify code with dev_err_probe()
soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt
soc: fsl: cpm1: qmc: Fix dependency on fsl_soc.h
dt-bindings: arm: rockchip: Add rk3576 compatible string to pmu.yaml
soc: fsl: qbman: Remove redundant warnings
soc: fsl: qbman: Use iommu_paging_domain_alloc()
MAINTAINERS: Add QE files related to the Freescale QMC controller
soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware
soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation
soc: fsl: qe: Add missing PUSHSCHED command
soc: fsl: qe: Add resource-managed muram allocators
soc: fsl: cpm1: qmc: Introduce qmc_version
soc: fsl: cpm1: qmc: Rename SCC_GSMRL_MODE_QMC
soc: fsl: cpm1: qmc: Handle RPACK initialization
soc: fsl: cpm1: qmc: Rename qmc_chan_command()
soc: fsl: cpm1: qmc: Introduce qmc_{init,exit}_xcc() and their CPM1 version
soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version
soc: fsl: cpm1: qmc: Re-order probe() operations
...
Diffstat (limited to 'drivers/memory/emif.c')
| -rw-r--r-- | drivers/memory/emif.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c index 8c5ad5c025fa..99eb7d1baa5f 100644 --- a/drivers/memory/emif.c +++ b/drivers/memory/emif.c @@ -7,6 +7,7 @@ * Aneesh V <aneesh@ti.com> * Santosh Shilimkar <santosh.shilimkar@ti.com> */ +#include <linux/cleanup.h> #include <linux/err.h> #include <linux/kernel.h> #include <linux/reboot.h> @@ -57,7 +58,6 @@ struct emif_data { u8 temperature_level; u8 lpmode; struct list_head node; - unsigned long irq_state; void __iomem *base; struct device *dev; struct emif_regs *regs_cache[EMIF_MAX_NUM_FREQUENCIES]; @@ -69,7 +69,6 @@ struct emif_data { static struct emif_data *emif1; static DEFINE_SPINLOCK(emif_lock); -static unsigned long irq_state; static LIST_HEAD(device_list); static void do_emif_regdump_show(struct seq_file *s, struct emif_data *emif, @@ -523,18 +522,18 @@ out: static irqreturn_t handle_temp_alert(void __iomem *base, struct emif_data *emif) { u32 old_temp_level; - irqreturn_t ret = IRQ_HANDLED; + irqreturn_t ret; struct emif_custom_configs *custom_configs; - spin_lock_irqsave(&emif_lock, irq_state); + guard(spinlock_irqsave)(&emif_lock); old_temp_level = emif->temperature_level; get_temperature_level(emif); if (unlikely(emif->temperature_level == old_temp_level)) { - goto out; + return IRQ_HANDLED; } else if (!emif->curr_regs) { dev_err(emif->dev, "temperature alert before registers are calculated, not de-rating timings\n"); - goto out; + return IRQ_HANDLED; } custom_configs = emif->plat_data->custom_configs; @@ -554,8 +553,7 @@ static irqreturn_t handle_temp_alert(void __iomem *base, struct emif_data *emif) * from thread context */ emif->temperature_level = SDRAM_TEMP_VERY_HIGH_SHUTDOWN; - ret = IRQ_WAKE_THREAD; - goto out; + return IRQ_WAKE_THREAD; } } @@ -571,10 +569,9 @@ static irqreturn_t handle_temp_alert(void __iomem *base, struct emif_data *emif) /* Temperature is going up - handle immediately */ setup_temperature_sensitive_regs(emif, emif->curr_regs); do_freq_update(); + ret = IRQ_HANDLED; } -out: - spin_unlock_irqrestore(&emif_lock, irq_state); return ret; } @@ -617,6 +614,7 @@ static irqreturn_t emif_interrupt_handler(int irq, void *dev_id) static irqreturn_t emif_threaded_isr(int irq, void *dev_id) { struct emif_data *emif = dev_id; + unsigned long irq_state; if (emif->temperature_level == SDRAM_TEMP_VERY_HIGH_SHUTDOWN) { dev_emerg(emif->dev, "SDRAM temperature exceeds operating limit.. Needs shut down!!!\n"); @@ -864,7 +862,7 @@ static void of_get_custom_configs(struct device_node *np_emif, be32_to_cpup(poll_intvl); } - if (of_find_property(np_emif, "extended-temp-part", &len)) + if (of_property_read_bool(np_emif, "extended-temp-part")) cust_cfgs->mask |= EMIF_CUSTOM_CONFIG_EXTENDED_TEMP_PART; if (!is_custom_config_valid(cust_cfgs, emif->dev)) { @@ -880,13 +878,9 @@ static void of_get_ddr_info(struct device_node *np_emif, struct ddr_device_info *dev_info) { u32 density = 0, io_width = 0; - int len; - if (of_find_property(np_emif, "cs1-used", &len)) - dev_info->cs1_used = true; - - if (of_find_property(np_emif, "cal-resistor-per-cs", &len)) - dev_info->cal_resistors_per_cs = true; + dev_info->cs1_used = of_property_read_bool(np_emif, "cs1-used"); + dev_info->cal_resistors_per_cs = of_property_read_bool(np_emif, "cal-resistor-per-cs"); if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s4")) dev_info->type = DDR_TYPE_LPDDR2_S4; @@ -916,7 +910,6 @@ static struct emif_data *of_get_memory_device_details( struct ddr_device_info *dev_info = NULL; struct emif_platform_data *pd = NULL; struct device_node *np_ddr; - int len; np_ddr = of_parse_phandle(np_emif, "device-handle", 0); if (!np_ddr) @@ -944,7 +937,7 @@ static struct emif_data *of_get_memory_device_details( of_property_read_u32(np_emif, "phy-type", &pd->phy_type); - if (of_find_property(np_emif, "hw-caps-ll-interface", &len)) + if (of_property_read_bool(np_emif, "hw-caps-ll-interface")) pd->hw_caps |= EMIF_HW_CAPS_LL_INTERFACE; of_get_ddr_info(np_emif, np_ddr, dev_info); |