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Commit 5994e641 authored by Subramanian Ananthanarayanan's avatar Subramanian Ananthanarayanan
Browse files

i3c: i3c-master-qcom-geni: Support for 3.4 Mhz,400 Khz 



The change involes support for 3.4 Mhz and modified clk values for 400 Khz
to support NFC enumeration. Also changed open drain frequency to be used
from i2c clk freq passed from DTSI.

Change-Id: Ibba2416dab09c958b31779857aad5fe8dd753773
Signed-off-by: default avatarSubramanian Ananthanarayanan <skananth@codeaurora.org>
parent 480051d9

drivers/i3c/master/i3c-master-qcom-geni.c

+6 −7
Original line number Diff line number Diff line
@@ -201,7 +201,6 @@ enum geni_i3c_err_code { 
#define TLMM_I3C_MODE	0x24

#define IBI_SW_RESET_MIN_SLEEP 1000

#define IBI_SW_RESET_MAX_SLEEP 2000

#define I3C_OD_CLK_RATE 370000



enum i3c_trans_dir {

	WRITE_TRANSACTION = 0,
@@ -345,9 +344,10 @@ to_geni_i3c_master(struct i3c_master_controller *master) 
 */

static const struct geni_i3c_clk_fld geni_i3c_clk_map[] = {

	{ KHZ(100),    19200,  7, 10, 11,  0,  0,  26},

	{ KHZ(400),    19200,  2,  5, 12,  0,  0,  24},

	{ KHZ(400),    19200,  1, 72, 168, 6,  7, 300},

	{ KHZ(1000),   19200,  1,  3,  9,  7,  0,  18},

	{ KHZ(1920),   19200,  1,  4,  9,  7,  8,  19},

	{ KHZ(3500),   19200,  1, 72, 168, 3, 4,  300},

	{ KHZ(370),   100000, 20,  4,  7,  8, 14,  14},

	{ KHZ(12500), 100000,  1, 72, 168, 6,  7, 300},

};
@@ -366,7 +366,7 @@ static int geni_i3c_clk_map_idx(struct geni_i3c_dev *gi3c) 
			gi3c->clk_fld = itr;

		}



		if (itr->clk_freq_out == I3C_OD_CLK_RATE)

		if (itr->clk_freq_out == bus->scl_rate.i2c)

			gi3c->clk_od_fld = itr;

	}
@@ -423,7 +423,6 @@ static void qcom_geni_i3c_conf(struct geni_i3c_dev *gi3c, 
	if (bus_phase == OPEN_DRAIN_MODE)

		itr = gi3c->clk_od_fld;



	if (gi3c->dfs_idx > DFS_INDEX_MAX)

	ret = geni_se_clk_freq_match(&gi3c->se.i3c_rsc,

			KHZ(itr->clk_src_freq),

			&gi3c->dfs_idx, &freq, false);