[PATCH v2 04/10] soc: ti: k3-navss-ringacc: Fix reset ring API

Chintan Vankar
2024-04-25T12:10:00Z

From: Vignesh Raghavendra <vigneshr@ti.com>

Expectation of k3_ringacc_ring_reset_raw() is to reset the ring to
requested size and not to 0. Fix this.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Chintan Vankar <c-vankar@ti.com>
---

Link to v1:
https://lore.kernel.org/r/20240112064759.1801600-5-s-vadapalli@ti.com/

Changes from v1 to v2:
- No changes.

drivers/soc/ti/k3-navss-ringacc-u-boot.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/ti/k3-navss-ringacc-u-boot.c b/drivers/soc/ti/k3-navss-ringacc-u-boot.c
index f958239c2a..5d650b9de7 100644
--- a/drivers/soc/ti/k3-navss-ringacc-u-boot.c
+++ b/drivers/soc/ti/k3-navss-ringacc-u-boot.c
@@ -25,9 +25,16 @@ struct k3_nav_ring_cfg_regs {
#define KNAV_RINGACC_CFG_RING_SIZE_ELSIZE_MASK GENMASK(26, 24)
#define KNAV_RINGACC_CFG_RING_SIZE_ELSIZE_SHIFT (24)

+#define KNAV_RINGACC_CFG_RING_SIZE_MASK GENMASK(15, 0)
+
static void k3_ringacc_ring_reset_raw(struct k3_nav_ring *ring)
{
- writel(0, &ring->cfg->size);
+ u32 reg;
+
+ reg = readl(&ring->cfg->size);
+ reg &= KNAV_RINGACC_CFG_RING_SIZE_MASK;
+ reg |= ring->size;
+ writel(reg, &ring->cfg->size);
}

static void k3_ringacc_ring_reconfig_qmode_raw(struct k3_nav_ring *ring, enum k3_nav_ring_mode mode)
--
2.34.1