[PATCH 6/6] dma: ti: k3-udma: Switch to k3_ringacc_request_rings_pair

[Vignesh Raghavendra]

We only request ring pairs via K3 DMA driver, switch to use the new
k3_ringacc_request_rings_pair() to simplify the code.

As a good side effect, all boot stages now use exposed RING mode which
avoid maintaining proxy mode for 32 bit R5 core.

Signed-off-by: Vignesh Raghavendra <vigne...@ti.com>
---
 drivers/dma/ti/k3-udma.c | 52 ++++++++++++----------------------------
 1 file changed, 15 insertions(+), 37 deletions(-)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 77790b66e4..57d9fbfabb 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -32,12 +32,6 @@
 #include "k3-udma-hwdef.h"
 #include "k3-psil-priv.h"
 
-#if BITS_PER_LONG == 64
-#define RINGACC_RING_USE_PROXY (0)
-#else
-#define RINGACC_RING_USE_PROXY (1)
-#endif
-
 #define K3_UDMA_MAX_RFLOWS 1024
 
 struct udma_chan;
@@ -796,21 +790,14 @@ static int udma_alloc_tx_resources(struct udma_chan *uc)
        if (ret)
                return ret;
 
-       uc->tchan->t_ring = k3_nav_ringacc_request_ring(
-                               ud->ringacc, uc->tchan->id,
-                               RINGACC_RING_USE_PROXY);
-       if (!uc->tchan->t_ring) {
+       ret = k3_nav_ringacc_request_rings_pair(ud->ringacc, uc->tchan->id, -1,
+                                               &uc->tchan->t_ring,
+                                               &uc->tchan->tc_ring);
+       if (ret) {
                ret = -EBUSY;
                goto err_tx_ring;
        }
 
-       uc->tchan->tc_ring = k3_nav_ringacc_request_ring(
-                               ud->ringacc, -1, RINGACC_RING_USE_PROXY);
-       if (!uc->tchan->tc_ring) {
-               ret = -EBUSY;
-               goto err_txc_ring;
-       }
-
        memset(&ring_cfg, 0, sizeof(ring_cfg));
        ring_cfg.size = 16;
        ring_cfg.elm_size = K3_NAV_RINGACC_RING_ELSIZE_8;
@@ -827,7 +814,6 @@ static int udma_alloc_tx_resources(struct udma_chan *uc)
 err_ringcfg:
        k3_nav_ringacc_ring_free(uc->tchan->tc_ring);
        uc->tchan->tc_ring = NULL;
-err_txc_ring:
        k3_nav_ringacc_ring_free(uc->tchan->t_ring);
        uc->tchan->t_ring = NULL;
 err_tx_ring:
@@ -857,6 +843,7 @@ static int udma_alloc_rx_resources(struct udma_chan *uc)
 {
        struct k3_nav_ring_cfg ring_cfg;
        struct udma_dev *ud = uc->ud;
+       struct udma_rflow *rflow;
        int fd_ring_id;
        int ret;
 
@@ -876,40 +863,31 @@ static int udma_alloc_rx_resources(struct udma_chan *uc)
 
        fd_ring_id = ud->tchan_cnt + ud->echan_cnt + uc->rchan->id;
 
-       uc->rflow->fd_ring = k3_nav_ringacc_request_ring(
-                               ud->ringacc, fd_ring_id,
-                               RINGACC_RING_USE_PROXY);
-       if (!uc->rflow->fd_ring) {
+       rflow = uc->rflow;
+       ret = k3_nav_ringacc_request_rings_pair(ud->ringacc, fd_ring_id, -1,
+                                               &rflow->fd_ring, 
&rflow->r_ring);
+       if (ret) {
                ret = -EBUSY;
                goto err_rx_ring;
        }
 
-       uc->rflow->r_ring = k3_nav_ringacc_request_ring(
-                               ud->ringacc, -1, RINGACC_RING_USE_PROXY);
-       if (!uc->rflow->r_ring) {
-               ret = -EBUSY;
-               goto err_rxc_ring;
-       }
-
        memset(&ring_cfg, 0, sizeof(ring_cfg));
        ring_cfg.size = 16;
        ring_cfg.elm_size = K3_NAV_RINGACC_RING_ELSIZE_8;
        ring_cfg.mode = K3_NAV_RINGACC_RING_MODE_RING;
 
-       ret = k3_nav_ringacc_ring_cfg(uc->rflow->fd_ring, &ring_cfg);
-       ret |= k3_nav_ringacc_ring_cfg(uc->rflow->r_ring, &ring_cfg);
-
+       ret = k3_nav_ringacc_ring_cfg(rflow->fd_ring, &ring_cfg);
+       ret |= k3_nav_ringacc_ring_cfg(rflow->r_ring, &ring_cfg);
        if (ret)
                goto err_ringcfg;
 
        return 0;
 
 err_ringcfg:
-       k3_nav_ringacc_ring_free(uc->rflow->r_ring);
-       uc->rflow->r_ring = NULL;
-err_rxc_ring:
-       k3_nav_ringacc_ring_free(uc->rflow->fd_ring);
-       uc->rflow->fd_ring = NULL;
+       k3_nav_ringacc_ring_free(rflow->r_ring);
+       rflow->r_ring = NULL;
+       k3_nav_ringacc_ring_free(rflow->fd_ring);
+       rflow->fd_ring = NULL;
 err_rx_ring:
        udma_put_rflow(uc);
 err_rflow:
-- 
2.27.0