On Thu Oct 1 15:45:39 2026 +0300, Antti Laakso wrote:
> Add buttress psys helpers, needed by ipu7 psys driver.
>
> Assisted-by: LLM
> Signed-off-by: Antti Laakso <[email protected]>
> Signed-off-by: Sakari Ailus <[email protected]>
Patch committed.
Thanks,
Sakari Ailus
drivers/media/pci/intel/ipu6/ipu6-buttress.c | 22 ++++++++++++++++++++++
drivers/media/pci/intel/ipu6/ipu6-buttress.h | 2 ++
.../pci/intel/ipu6/ipu6-platform-buttress-regs.h | 4 ++++
drivers/media/pci/intel/ipu6/ipu7-platform-regs.h | 12 ++++++++++++
4 files changed, 40 insertions(+)
---
diff --git a/drivers/media/pci/intel/ipu6/ipu6-buttress.c
b/drivers/media/pci/intel/ipu6/ipu6-buttress.c
index 00d504647c29..f1d236054cf7 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-buttress.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-buttress.c
@@ -1055,6 +1055,28 @@ u32 ipu7_buttress_get_isys_freq(struct ipu6_device *isp)
}
EXPORT_SYMBOL_NS_GPL(ipu7_buttress_get_isys_freq, "INTEL_IPU6");
+/* trigger uc control to wakeup fw */
+void ipu7_buttress_wakeup_psys(const struct ipu6_device *isp)
+{
+ u32 val;
+
+ val = readl(isp->base + IPU7_BUTTRESS_REG_PSYS_UCX_CTRL_STATUS);
+ val |= IPU7_UCX_CTL_WAKEUP;
+ writel(val, isp->base + IPU7_BUTTRESS_REG_PSYS_UCX_CTRL_STATUS);
+}
+EXPORT_SYMBOL_NS_GPL(ipu7_buttress_wakeup_psys, "INTEL_IPU6");
+
+u32 ipu7_buttress_get_psys_freq(struct ipu6_device *isp)
+{
+ u32 val;
+
+ val = readl(isp->base + IPU7_BUTTRESS_REG_PS_WORKPOINT_REQ);
+ val &= IPU7_BUTTRESS_PS_FREQ_CTL_RATIO_MASK;
+
+ return val * IPU7_BUTTRESS_PS_FREQ_RATIO_STEP;
+}
+EXPORT_SYMBOL_NS_GPL(ipu7_buttress_get_psys_freq, "INTEL_IPU6");
+
static const struct x86_cpu_id ipu7_misc_cfg_exclusion[] = {
X86_MATCH_VFM_STEPS(INTEL_PANTHERLAKE_L, 0x1, 0x1, 0),
{},
diff --git a/drivers/media/pci/intel/ipu6/ipu6-buttress.h
b/drivers/media/pci/intel/ipu6/ipu6-buttress.h
index 79d8f5893686..39c2951c5370 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-buttress.h
+++ b/drivers/media/pci/intel/ipu6/ipu6-buttress.h
@@ -108,4 +108,6 @@ void ipu6_buttress_csi_port_config(struct ipu6_device *isp,
void ipu6_buttress_restore(struct ipu6_device *isp);
void ipu7_buttress_wakeup_isys(const struct ipu6_device *isp);
u32 ipu7_buttress_get_isys_freq(struct ipu6_device *isp);
+void ipu7_buttress_wakeup_psys(const struct ipu6_device *isp);
+u32 ipu7_buttress_get_psys_freq(struct ipu6_device *isp);
#endif /* IPU6_BUTTRESS_H */
diff --git a/drivers/media/pci/intel/ipu6/ipu6-platform-buttress-regs.h
b/drivers/media/pci/intel/ipu6/ipu6-platform-buttress-regs.h
index 04d196c49c60..4c4ca95c7d54 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-platform-buttress-regs.h
+++ b/drivers/media/pci/intel/ipu6/ipu6-platform-buttress-regs.h
@@ -237,6 +237,8 @@ enum {
#define IPU7_BUTTRESS_REG_PB_TIMESTAMP_VALID 0x2038
#define IPU7_BUTTRESS_REG_IS_WORKPOINT_REQ 0x2104
#define IPU7_BUTTRESS_REG_PS_WORKPOINT_REQ 0x2100
+#define IPU7_BUTTRESS_REG_PS_WORKPOINT_DOMAIN_REQ 0x2108
+#define IPU7_BUTTRESS_REG_PS_DOMAINS_STATUS 0x2110
#define IPU7_BUTTRESS_REG_IDLE_WDT 0x218c
#define IPU7_BUTTRESS_REG_ISYS_UCX_CTRL_STATUS 0x2200
#define IPU7_BUTTRESS_REG_ISYS_UCX_START_ADDR 0x2204
@@ -280,6 +282,8 @@ enum {
#define IPU7_FREQ_CTL_CDYN 0x80
#define IPU7_FREQ_CTL_CDYN_SHIFT 8
#define IPU7_BUTTRESS_IS_FREQ_CTL_RATIO_MASK GENMASK(7, 0)
+#define IPU7_BUTTRESS_PS_FREQ_CTL_RATIO_MASK GENMASK(7, 0)
+#define IPU7_BUTTRESS_PS_FREQ_RATIO_STEP 25U
#define IPU7_IS_FREQ_CTL_DEFAULT_RATIO 0x1b
#define IPU7_PS_FREQ_CTL_DEFAULT_RATIO 0x14
/* IS: 400MHz, PS: 400MHz */
diff --git a/drivers/media/pci/intel/ipu6/ipu7-platform-regs.h
b/drivers/media/pci/intel/ipu6/ipu7-platform-regs.h
index 39cd5c0890e5..3493e0efe24d 100644
--- a/drivers/media/pci/intel/ipu6/ipu7-platform-regs.h
+++ b/drivers/media/pci/intel/ipu6/ipu7-platform-regs.h
@@ -4,6 +4,8 @@
#ifndef IPU7_PLATFORM_REGS_H
#define IPU7_PLATFORM_REGS_H
+#include <linux/bits.h>
+
#define IPU7_IS_UC_CTRL_BASE 0x230000
#define IPU7_ISYS_DMEM_OFFSET 0x200000
#define IPU7_PS_UC_CTRL_BASE 0x130000
@@ -29,4 +31,14 @@
#define IPU7_TO_SW_IRQ_FW BIT(0)
#define IPU7_REG_PRINTF_AXI_CNTL 0x301c
+/* psys subdomain power request positions in PS_WORKPOINT_DOMAIN_REQ */
+enum ipu7_psys_subdomain_pos {
+ IPU7_PSYS_SUBDOMAIN_LB = 0,
+ IPU7_PSYS_SUBDOMAIN_BB = 1,
+};
+
+#define IPU7_PSYS_DOMAIN_POWER_MASK (BIT(IPU7_PSYS_SUBDOMAIN_LB) | \
+ BIT(IPU7_PSYS_SUBDOMAIN_BB))
+#define IPU7_PSYS_DOMAIN_POWER_IN_PROGRESS BIT(31)
+
#endif
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