Commit e737f3b6 authored Sep 11, 2013 by Alok Chauhan

msm: msm_bus: send correct value to bw division function



While calculating bw for existing client request
sometimes it can go to negative if client unregisters
or send request with lesser ab/ib values. Bus driver
will divide bandwidth if interleaving enabled.

Added a macro wrapper to handle negative bw values
since the division utility function can't handle
negative values

CRs-Fixed: 521940
Change-Id: Ic3a216b8efb535593fe02ad3228d71808d2e0f98
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>

parent e6edf782

arch/arm/mach-msm/msm_bus/msm_bus_core.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -36,7 +36,8 @@
		(((slv >= MSM_BUS_SLAVE_FIRST) && (slv <= MSM_BUS_SLAVE_LAST)) ? 1 : 0)

		#define INTERLEAVED_BW(fab_pdata, bw, ports) \
		((fab_pdata->il_flag) ? msm_bus_div64((ports), (bw)) : (bw))
		((fab_pdata->il_flag) ? ((bw < 0) \
		? -msm_bus_div64((ports), (-bw)) : msm_bus_div64((ports), (bw))) : (bw))
		#define INTERLEAVED_VAL(fab_pdata, n) \
		((fab_pdata->il_flag) ? (n) : 1)