ath10k: add helper functions in ahb.c for reg rd/wr

qca4019 deals with below register memory region to control the clock,
reset, etc.

        - Memory to control wifi core
        - gcc (outside of wifi)
        - tcsr (outside of wifi)

Add new helper functions to perform read/write in above registers
spaces. Actual ioremap for above registers are done in later patch.
Struct ath10k_ahb is introduced to maintain ahb specific info and
memory this struct will be allocated in the continuation of struct
ath10k_pci (again, memory ath10k_ahb is allocated in the later patch).

Signed-off-by: Raja Mani <rmani@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath10k/ahb.h b/drivers/net/wireless/ath/ath10k/ahb.h
index d1afe93f9329..77d15af59c4a 100644
--- a/drivers/net/wireless/ath/ath10k/ahb.h
+++ b/drivers/net/wireless/ath/ath10k/ahb.h
@@ -20,6 +20,13 @@
 
 #include <linux/platform_device.h>
 
+struct ath10k_ahb {
+	struct platform_device *pdev;
+	void __iomem *mem;
+	void __iomem *gcc_mem;
+	void __iomem *tcsr_mem;
+};
+
 #ifdef CONFIG_ATH10K_AHB
 
 int ath10k_ahb_init(void);