[PATCH V2 06/11] soc: ti: knav_qmss: Fix __iomem annotations and __be32 type

[Nishanth Menon]

Fix several address-space and type annotation issues reported by sparse:

- Change pdsp->command from 'void __iomem *' to 'u32 __iomem *' to
  match the other union members (acc_command, qos_command); adjust
  the offset in knav_queue_load_pdsp() from +0x18 to +0x6 to
  preserve the 24-byte offset.
- Fix knav_queue_pdsp_wait() declaration: correct the parameter
  annotation from 'u32 * __iomem' (pointer-in-iomem-space) to
  'u32 __iomem *' (pointer-to-iomem); use 'unsigned int' for the
  timeout parameter instead of bare 'unsigned'; fix the continuation-
  line alignment.
- Use IOMEM_ERR_PTR() in knav_queue_map_reg() instead of ERR_PTR()
  when returning an error as void __iomem *.
- Annotate the firmware data array as 'const __be32 *' instead of
  'u32 *', as be32_to_cpu() requires __be32 input.

Signed-off-by: Nishanth Menon <nm at ti.com>
---
Changes since V1:
- pdsp->command from 'void __iomem *' to 'u32 __iomem *' based on
  Andrew's suggestion (it is a more accurate representation anyways).
- Fix ups in commit message

V1: https://lore.kernel.org/all/20260508153211.3688277-7-nm@ti.com/

 drivers/soc/ti/knav_qmss.h       |  2 +-
 drivers/soc/ti/knav_qmss_queue.c | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/soc/ti/knav_qmss.h b/drivers/soc/ti/knav_qmss.h
index 9325e8ce2e25..037dc1b36645 100644
--- a/drivers/soc/ti/knav_qmss.h
+++ b/drivers/soc/ti/knav_qmss.h
@@ -123,7 +123,7 @@ struct knav_pdsp_info {
 	const char					*name;
 	struct knav_reg_pdsp_regs  __iomem		*regs;
 	union {
-		void __iomem				*command;
+		u32 __iomem				*command;
 		struct knav_reg_acc_command __iomem	*acc_command;
 		u32 __iomem				*qos_command;
 	};
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 50072e9dea37..a747a08115d3 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -477,8 +477,8 @@ static int knav_queue_debug_show(struct seq_file *s, void *v)
 
 DEFINE_SHOW_ATTRIBUTE(knav_queue_debug);
 
-static inline int knav_queue_pdsp_wait(u32 * __iomem addr, unsigned timeout,
-					u32 flags)
+static inline int knav_queue_pdsp_wait(u32 __iomem *addr, unsigned int timeout,
+				       u32 flags)
 {
 	unsigned long end;
 	u32 val = 0;
@@ -1368,7 +1368,7 @@ static void __iomem *knav_queue_map_reg(struct knav_device *kdev,
 	if (ret) {
 		dev_err(kdev->dev, "Can't translate of node(%pOFn) address for index(%d)\n",
 			node, index);
-		return ERR_PTR(ret);
+		return IOMEM_ERR_PTR(ret);
 	}
 
 	regs = devm_ioremap_resource(kdev->dev, &res);
@@ -1556,7 +1556,7 @@ static int knav_queue_load_pdsp(struct knav_device *kdev,
 	int i, ret, fwlen;
 	const struct firmware *fw;
 	bool found = false;
-	u32 *fwdata;
+	const __be32 *fwdata;
 
 	for (i = 0; i < ARRAY_SIZE(knav_acc_firmwares); i++) {
 		if (knav_acc_firmwares[i]) {
@@ -1578,9 +1578,9 @@ static int knav_queue_load_pdsp(struct knav_device *kdev,
 	dev_info(kdev->dev, "firmware file %s downloaded for PDSP\n",
 		 knav_acc_firmwares[i]);
 
-	writel_relaxed(pdsp->id + 1, pdsp->command + 0x18);
+	writel_relaxed(pdsp->id + 1, pdsp->command + 0x6);
 	/* download the firmware */
-	fwdata = (u32 *)fw->data;
+	fwdata = (const __be32 *)fw->data;
 	fwlen = (fw->size + sizeof(u32) - 1) / sizeof(u32);
 	for (i = 0; i < fwlen; i++)
 		writel_relaxed(be32_to_cpu(fwdata[i]), pdsp->iram + i);
-- 
2.47.0