[PATCH v1 07/11] soc: mediatek: cmdq: add write_s_mask value function

[Dennis YC Hsieh]

add write_s_mask_value function in cmdq helper functions which
writes a constant value to address with mask and large dma
access support.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hs...@mediatek.com>
---
 drivers/soc/mediatek/mtk-cmdq-helper.c |   21 +++++++++++++++++++++
 include/linux/soc/mediatek/mtk-cmdq.h  |   15 +++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c 
b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 2ad78df46636..e372ae065240 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -293,6 +293,27 @@ int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 
high_addr_reg_idx,
 }
 EXPORT_SYMBOL(cmdq_pkt_write_s_value);
 
+int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
+                               u16 addr_low, u32 value, u32 mask)
+{
+       struct cmdq_instruction inst = {};
+       int err;
+
+       inst.op = CMDQ_CODE_MASK;
+       inst.mask = ~mask;
+       err = cmdq_pkt_append_command(pkt, inst);
+       if (err < 0)
+               return err;
+
+       inst.op = CMDQ_CODE_WRITE_S_MASK;
+       inst.sop = high_addr_reg_idx;
+       inst.offset = addr_low;
+       inst.value = value;
+
+       return cmdq_pkt_append_command(pkt, inst);
+}
+EXPORT_SYMBOL(cmdq_pkt_write_s_mask_value);
+
 int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event)
 {
        struct cmdq_instruction inst = { {0} };
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h 
b/include/linux/soc/mediatek/mtk-cmdq.h
index 7f1c115a66b8..6e8caacedc80 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -165,6 +165,21 @@ int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 
high_addr_reg_idx,
                           u16 addr_low, u32 value);
 
 /**
+ * cmdq_pkt_write_s_mask_value() - append write_s command with mask to the CMDQ
+ *                                packet which write value to a physical
+ *                                address
+ * @pkt:       the CMDQ packet
+ * @high_addr_reg_idx: internal register ID which contains high address of pa
+ * @addr_low:  low address of pa
+ * @value:     the specified target value
+ * @mask:      the specified target mask
+ *
+ * Return: 0 for success; else the error code is returned
+ */
+int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
+                               u16 addr_low, u32 value, u32 mask);
+
+/**
  * cmdq_pkt_wfe() - append wait for event command to the CMDQ packet
  * @pkt:       the CMDQ packet
  * @event:     the desired event type to "wait and CLEAR"
-- 
1.7.9.5