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authorLinus Torvalds <torvalds@linux-foundation.org>2023-03-01 01:05:01 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2023-03-01 01:05:01 +0100
commit1899946aaf2566c577683ebe510a83c930cd3751 (patch)
tree910bd1db87dc8ea1e7e29f04d1d7c4083d5996a2 /drivers/i3c
parentMerge tag 'docs-6.3-2' of git://git.lwn.net/linux (diff)
parenti3c: master: dw: stop hardcoding initial speed (diff)
downloadlinux-1899946aaf2566c577683ebe510a83c930cd3751.tar.xz
linux-1899946aaf2566c577683ebe510a83c930cd3751.zip
Merge tag 'i3c/for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni: "Subsystem: - transfer pid from boardinfo to device info Drivers: - dw-i3c-master: stop hardcoding initial speed" * tag 'i3c/for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: dw: stop hardcoding initial speed i3c: transfer pid from boardinfo to device info
Diffstat (limited to 'drivers/i3c')
-rw-r--r--drivers/i3c/master.c1
-rw-r--r--drivers/i3c/master/dw-i3c-master.c5
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 7a60e1c5e587..54e4c34b4a22 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -1438,6 +1438,7 @@ static int i3c_master_early_i3c_dev_add(struct i3c_master_controller *master,
{
struct i3c_device_info info = {
.static_addr = boardinfo->static_addr,
+ .pid = boardinfo->pid,
};
struct i3c_dev_desc *i3cdev;
int ret;
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index 51a8608203de..48954d3e6571 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -531,7 +531,7 @@ static int dw_i3c_clk_cfg(struct dw_i3c_master *master)
if (hcnt < SCL_I3C_TIMING_CNT_MIN)
hcnt = SCL_I3C_TIMING_CNT_MIN;
- lcnt = DIV_ROUND_UP(core_rate, I3C_BUS_TYP_I3C_SCL_RATE) - hcnt;
+ lcnt = DIV_ROUND_UP(core_rate, master->base.bus.scl_rate.i3c) - hcnt;
if (lcnt < SCL_I3C_TIMING_CNT_MIN)
lcnt = SCL_I3C_TIMING_CNT_MIN;
@@ -541,7 +541,8 @@ static int dw_i3c_clk_cfg(struct dw_i3c_master *master)
if (!(readl(master->regs + DEVICE_CTRL) & DEV_CTRL_I2C_SLAVE_PRESENT))
writel(BUS_I3C_MST_FREE(lcnt), master->regs + BUS_FREE_TIMING);
- lcnt = DIV_ROUND_UP(I3C_BUS_TLOW_OD_MIN_NS, core_period);
+ lcnt = max_t(u8,
+ DIV_ROUND_UP(I3C_BUS_TLOW_OD_MIN_NS, core_period), lcnt);
scl_timing = SCL_I3C_TIMING_HCNT(hcnt) | SCL_I3C_TIMING_LCNT(lcnt);
writel(scl_timing, master->regs + SCL_I3C_OD_TIMING);