diff options
| author | Jarkko Nikula <jarkko.nikula@linux.intel.com> | 2024-06-28 16:15:56 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2024-07-26 15:21:29 +0300 |
| commit | 74e931f090a1d1a71d460284e87bd668667b98db (patch) | |
| tree | 73c78c9462452004dd28afb0b86831bbf1c87d73 /drivers | |
| parent | d9deb28f700cbe15800f1835da7994a5c6f03928 (diff) | |
| download | linux-74e931f090a1d1a71d460284e87bd668667b98db.tar.xz | |
i3c: mipi-i3c-hci: Switch to lower_32_bits()/upper_32_bits() helpers
Rather than having own lo32()/hi32() helpers for dealing with 32-bit and
64-bit build targets switch to generic lower_32_bits()/upper_32_bits()
helpers.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20240628131559.502822-1-jarkko.nikula@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i3c/master/mipi-i3c-hci/dma.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c index 4e01a95cc4d0..6c5964e727b3 100644 --- a/drivers/i3c/master/mipi-i3c-hci/dma.c +++ b/drivers/i3c/master/mipi-i3c-hci/dma.c @@ -147,21 +147,6 @@ struct hci_dma_dev_ibi_data { unsigned int max_len; }; -static inline u32 lo32(dma_addr_t physaddr) -{ - return physaddr; -} - -static inline u32 hi32(dma_addr_t physaddr) -{ - /* trickery to avoid compiler warnings on 32-bit build targets */ - if (sizeof(dma_addr_t) > 4) { - u64 hi = physaddr; - return hi >> 32; - } - return 0; -} - static void hci_dma_cleanup(struct i3c_hci *hci) { struct hci_rings_data *rings = hci->io_data; @@ -265,10 +250,10 @@ static int hci_dma_init(struct i3c_hci *hci) if (!rh->xfer || !rh->resp || !rh->src_xfers) goto err_out; - rh_reg_write(CMD_RING_BASE_LO, lo32(rh->xfer_dma)); - rh_reg_write(CMD_RING_BASE_HI, hi32(rh->xfer_dma)); - rh_reg_write(RESP_RING_BASE_LO, lo32(rh->resp_dma)); - rh_reg_write(RESP_RING_BASE_HI, hi32(rh->resp_dma)); + rh_reg_write(CMD_RING_BASE_LO, lower_32_bits(rh->xfer_dma)); + rh_reg_write(CMD_RING_BASE_HI, upper_32_bits(rh->xfer_dma)); + rh_reg_write(RESP_RING_BASE_LO, lower_32_bits(rh->resp_dma)); + rh_reg_write(RESP_RING_BASE_HI, upper_32_bits(rh->resp_dma)); regval = FIELD_PREP(CR_RING_SIZE, rh->xfer_entries); rh_reg_write(CR_SETUP, regval); @@ -404,8 +389,8 @@ static int hci_dma_queue_xfer(struct i3c_hci *hci, hci_dma_unmap_xfer(hci, xfer_list, i); return -ENOMEM; } - *ring_data++ = lo32(xfer->data_dma); - *ring_data++ = hi32(xfer->data_dma); + *ring_data++ = lower_32_bits(xfer->data_dma); + *ring_data++ = upper_32_bits(xfer->data_dma); } else { *ring_data++ = 0; *ring_data++ = 0; |